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Case Study Questions Class 10 Science

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Download Case study questions for CBSE class 10 Science in PDF format from the myCBSEguide App . We have the new pattern case study-based questions for free download. Class 10 Science case study questions

This article will guide you through:

What are case study questions?

  • Sample Papers with Case Study questions
  • Class 10 Science Case Study question examples
  • How to get case-based questions for free?
  • How to attempt the case-based questions in Science?

Questions based on case studies are some real-life examples. The questions are asked based on a given paragraph i.e. Case Study.  Usually, 4-5 questions are asked on the basis of the given passage. In most cases, these are either MCQs or assertion & reason type questions. Let’s take an example to understand. There is one paragraph on how nitrogen is generated in the atmosphere. On the basis of this paragraph, the board asks a few objective-type questions. In other words, it is very similar to the unseen passages given in language papers. But the real cases may be different. So, read this article till the end to understand it thoroughly.

What is CBE?

CBSE stands for competency-based education. The case study questions are part of this CBE. The purpose of CBE is to demonstrate the learning outcomes and attain proficiency in particular competencies.

Questions on Real-life Situations

As discussed the case study questions are based on real-life situations. Especially for grade 10 science, it is very essential to have the practical knowledge to solve such questions. Here on the myCBSEguide app, we have given many such case study paragraphs that are directly related to real-life implications of the knowledge.

Sample Papers with Case Study Questions

Class 10 Science Sample Papers with case study questions are available in the myCBSEguide App . There are 4 such questions (Q.No.17 to 20) in the CBSE model question paper. If you analyze the format, you will find that the MCQs are very easy to answer. So, we suggest you, read the given paragraph carefully and then start answering the questions. In some cases, you will find that the question is not asked directly from the passage but is based on the concept that is discussed there. That’s why it is very much important to understand the background of the case study paragraph.

CBSE Case Study Sample Papers

You can download CBSE case study sample papers from the myCBSEguide App or Student Dashboard. Here is the direct link to access it.

Case Study Question Bank

As we mentioned that case study questions are coming in your exams for the last few years. You can get them in all previous year question papers issued by CBSE for class 1o Science. Here is the direct link to get them too.

Class 10 Science Case Study Question Examples

As you have already gone through the four questions provided in the CBSE model question paper , we are proving you with other examples of the case-based questions in the CBSE class 10 Science. If you wish to get similar questions, you can download the myCBSEguide App and access the Sample question papers with case study-type questions.

Case-based Question -1

Read the following and answer any four questions: Salt of a strong acid and strong base is neutral with a pH value of 7. NaCl common salt is formed by a combination of hydrochloride and sodium hydroxide solution. This is the salt that is used in food. Some salt is called rock salt bed of rack salt was formed when seas of bygone ages dried up. The common salt thus obtained is an important raw material for various materials of daily use, such as sodium hydroxide, baking soda, washing soda, and bleaching powder.

  • Phosphoric acid
  • Carbonic acid
  • Hydrochloric acid
  • Sulphuric acid
  • Blue vitriol
  • Washing soda
  • Baking soda
  • Bleaching powder

Case-based Question -2

  • V 1  + V 2  + V 3
  • V 1  – V 2  +V 2
  • None of these
  • same at every point of the circuit
  • different at every point of the circuit
  • can not be determined
  • 20 3 Ω 203Ω
  • 15 2 Ω 152Ω

Case-based Question -3

  • pure strips
  • impure copper
  • refined copper
  • none of these
  • insoluble impurities
  • soluble impurities
  • impure metal
  • bottom of cathode
  • bottom of anode

How to Attempt the Case-Based Questions in Science?

Before answering this question, let’s read the text given in question number 17 of the CBSE Model Question Paper.

All living cells require energy for various activities. This energy is available by the breakdown of simple carbohydrates either using oxygen or without using oxygen.

See, there are only two sentences and CBSE is asking you 5 questions based on these two sentences. Now let’s check the first questions given there.

Energy in the case of higher plants and animals is obtained by a) Breathing b) Tissue respiration c) Organ respiration d) Digestion of food

Now let us know if you can relate the question to the paragraph directly. The two sentences are about energy and how it is obtained. But neither the question nor the options have any similar text in the paragraph.

So the conclusion is, in most cases, you will not get direct answers from the passage. You will get only an idea about the concept. If you know it, you can answer it but reading the paragraph even 100 times is not going to help you.

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case study based questions class 10 physics

CBSE 10th Standard Science Subject Light Reflection and Refraction Chapter Case Study Questions With Solution 2021

By QB365 on 21 May, 2021

QB365 Provides the updated CASE Study Questions for Class 10 , and also provide the detail solution for each and every case study questions . Case study questions are latest updated question pattern from NCERT, QB365 will helps to get  more marks in Exams 

QB365 - Question Bank Software

Cbse 10th standard science subject light reflection and refraction case study questions with solution 2021.

10th Standard CBSE

Final Semester - June 2015

The curved surface of a spoon can be considered as a spherical mirror. A highly smooth polished surface is called mirror. The mirror whose reflecting surface is curved inwards or outwards is called a spherical mirror. Inner part works as a concave mirror and the outer bulging part acts as a convex mirror. The center of the reflecting surface of a mirror is called pole and the radius of the sphere of which the mirror is formed is called radius of curvature. (i) When a concave mirror is held towards the sun and its sharp image is formed on a piece of carbon paper for some time, a hole is burnt in the carbon paper. What is the name given to the distance between the mirror and carbon paper?

(ii) The distance between pole and focal point of a spherical mirror is equal to the distance between

(iii) The focal length of a mirror is 15 cm. The radius of curvature is

(iv) The normal at any point on the mirror passes through

(v) In a convex spherical mirror, reflection of light takes place at

The spherical mirror forms different types of images when the object is placed at different locations. When the image is formed on screen, the image is real and when the image does not form on screen, the image is virtual. When the two reflected rays meet actually, the image is real and when they appear to meet, the image is virtual. A concave mirror always forms a real and inverted image for different positions of the object. But if the object is placed between the focus and pole, the image formed is virtual and erect. A convex mirror always forms a virtual, erect and diminished image. A concave mirror is used as doctor's head mirror to focus light on body parts like eyes, ears, nose etc., to be examined because it can form erect and magnified image of the object. The convex mirror is used as a rear view mirrors in automobiles because it can form an small and erect image of an object. (i) When an object is placed at the centre of curvature of a concave mirror, the image formed is

(ii) No matter how far you stand from a mirror, your image appears erect. The mirror is likely to be

(iii) A child is standing in front of a magic mirror. She finds the image of her head bigger, the middle portion of her body of the same size and that of the legs smaller. The following is the order of combinations for the magic mirror from the top.

(iv) To get an image larger than the object, one can use (a) convex mirror but not a concave mirror (b) a concave mirror but not a convex mirror (c) either a convex mirror or a concave mirror (d) a plane mirror. (v) A convex mirror has wider field of view because (a) the image formed is much smaller than the object and large number of images can be seen (b) the image formed is much closer to the mirror (c) both (a) and (b) (d) none of these.

The relation between distance of an object from the mirror (u), distance of image from the mirror (v) and the focal length (F) is called mirror formula. This formula is valid in all situations for all spherical mirrors for all positions of the object. The size of image formed by a spherical mirror depends on the position of the object from the mirror. The image formed by a spherical mirror can be bigger than the object, equal to the object or smaller than the object. The size of the image relative to the object is given by the linear magnification (m). Thus, the magnification is given by the ratio of height of image to the height of object. If magnification is negative, image is real and if it is positive, image is virtual. (i) What is the position of an image when an object is placed at a distance of 20 em from a concave mirror of focal length 20 cm?

case study based questions class 10 physics

(iii) If the magnification of an image is -2, the characteristic of image will be

(iv) The mirror formula holds for

(v) A parallel beam of light is made to fall on a concave mirror. An image is formed at a distance of7.5 from the mirror. The focal length of the mirror is

case study based questions class 10 physics

(ii) A ray of light passes from a medium A to another medium B. No bending of light occurs if the ray of light hits the boundary of medium B at an angle of

(iii) When light passes from one medium to another, the frequency of light

(iv) When light passes from glass to water, the speed of light

(v) The bottom of pool filled with water appears to be ______ due to refraction of light

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Cbse 10th standard science subject light reflection and refraction case study questions with solution 2021 answer keys.

case study based questions class 10 physics

(i) (d) : When an object is placed at the focus of a concave mirror, the..image is formed at infinity. (ii) (d) : When a light ray parallel to the principal axis is incident on a concave mirror, it passes through the principal focus after reflection. Therefore, figure D is correct. (iii) (a) : If m is negative, the image will be real and inverted. (iv) (d) (v) (b): The distance of object from mirror =  \(\infty\) Using,  \(\frac{1}{v}+\frac{1}{u}=\frac{1}{f}\) \(\frac{1}{\infty}-\left(-\frac{1}{7.5}\right)=\frac{1}{f}\) f = 7.5 cm

(i) (a): When, a ray of light travels from air to glass, it bends towards the normal. (ii) (c): No bending of light occurs when light is incident normally or perpendicularly on a boundary of two media since angle of incidence and angle of refraction both are zero. (iii) (c): When light goes from one medium to other medium, its frequency does not change (iv) (a): The speed to light increases when light passes from glass to water as water is optically rarer medium. (v) (a): The bottom of a pool of water appears to be less deep than it actually is due to refraction.

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Case Study Chapter 10 Light Reflection and Refraction

Please refer to Chapter 1 Light Reflection and Refraction Case Study Questions with answers provided below. We have provided Case Study Questions for Class 10 Science for all chapters as per CBSE, NCERT and KVS examination guidelines. These case based questions are expected to come in your exams this year. Please practise these case study based Class 10 Science Questions and answers to get more marks in examinations.

Case Study Questions Chapter 1 Light Reflection and Refraction

Case/Passage – 1 A 5.0 cm tall object is placed perpendicular to the principal axis of a convex lens of focal length 20 cm. The distance of the object from the lens is 30 cm.

Question: What is the power of the used lens? (a) + 5 D (b) – 5 D (c) + 0.5 D (d) – 0.5 D   

Question: What is the distance of image from the pole of lens? (a) v = 60 cm (b) v = – 60 cm (c) v = 30 cm (d) v = –30 cm 

Case/Passage – 2

Light travels through a vacuum at a speed c = 3 × 108 m/s. It can also travel through many materials, such as air, water and glass. Atoms in the material absorb, reemit and scatter the  light, however. Therefore, light travels through the material at a speed that is less than c, the actual speed depending on the nature of the material. To describe the extent to which  the speed of light in a material medium differs from that in a vacuum, we use a parameter called the index of refraction (or refractive index).

Question: Figure shows a ray of light as it travels from medium A to 

Case StuCase Study Chapter 10 Light Reflection and Refractiondy Chapter 10 Light Reflection and Refraction

medium B. Retractive index of the medium B relative to medium A is (a) √3/2 (b)√2/3 (c)√1/2 (d) √2

Question:The path of a ray of light coming from air passing through a rectangular glass slab traced by four students shown as A, B, C and D in the figure. Which one of them is correct?

Case Study Chapter 10 Light Reflection and Refraction

(a) A (b) B (c) C (d) D   

Question: A light ray enters from medium A to medium B as shown  

Case Study Chapter 10 Light Reflection and Refraction

in the figure. The refractive index of medium B relative to A will be  (a) greater than unity (b) less than unity (c) equal to unity (d) zero

Question: You are given water, mustard oil, glycerine and kerosene.  In which of these media, a ray of light incident obliquely at same angle would bend the most? (a) Kerosene (b) Water (c) Mustard oil (d) Glycerine   

Question: A ray of light is incident in medium 1 on a surface that separates medium 1 from medium 2. Let v1 and v2 represent the velocity of light in medium 1 and medium 2 respectively. Also let n12 and n21 represent the refractive index of medium 1 with respect to medium 2 and refractive index of medium 2 with respect to medium 1, respectively. If i and r denote the angle of incidence and angle of refraction, then- (a) sin i/sin r = n 21 V 1 /V 2 (b) sin i/sin r = n 21 V 2 /V 1 (c) sin i/sin r = n 12 V 1 /V 2 (d) sin i/sin r = n 12  V 2 /V 1   

Case/Passage – 3 Inside a substance such as glass or water, light travels more slowly than it does in a vacuum. If c denotes the speed of light in a vacuum and v denotes its speed through some other substance, then v = c/n where n is a constant called the index of refraction. To good approximation, a substance’s index of refraction does not depend on the wavelength of light. For instance, when red and blue light waves enter water, they both slow down by about the same amount. More precise measurements, however, reveal that n varies with wavelength. Table presents some indices of refraction of Custon glass, for different wavelengths of visible light. A nanometer (nm) is 10– 9  meters. In a vacuum, light travels as c = 3.0 × 10 8  m/s 

Case Study Chapter 10 Light Reflection and Refraction

Question: Inside Custon glass (a) Orange light travels faster than yellow light (b) Yellow light travels faster than orange light (c) Orange and Yellow light travels equally fast (d) We cannot determine which color of light travels faster 

Question: Which of the following phenomena happens because n varies with wavelength (a) A lens focuses light (b) A prism breaks sunlight into different colors (c) Total internal reflections ensures that light travels down a fiber optic cable (d) Light rays entering a pond change direction at the pond’s surface 

Question: For blue-green of wavelength 520 nm, the index of refraction of Custon glass is probably closest to (a) 1.49 (b) 1.50 (c) 1.51 (d) 1.52 

Case Study Chapter 10 Light Reflection and Refraction

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CBSE Class 10th - SCIENCE : Chapterwise Case Study Question & Solution

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CBSE Class 10th - SCIENCE : Chapterwise Case Study Question & Solution

In board exams, students will find the questions based on assertion and reasoning. Also, there will be a few questions based on case studies. In that, a paragraph will be given, and then the MCQ questions based on it will be asked. For Science subjects, there would be 5 case-based sub-parts questions, wherein a student has to attempt 4 sub-part questions.

1. Chemical Reactions & Equations
2. Acids, Bases & Salts
3. Metals & Non-metals
4. Carbon & Its Compounds
5. Periodic Classification of Elements
6. Life Processes
8. How Do Organisms Reproduce
9. Heredity & Evolution
10. Light-Reflection & Refraction
11. The Human Eye & the Colourful World
12. Electricity
13. Magnetic Effects of Electric Current
15. Our Environment

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Preparing for the CBSE Class 10th Social Science mid-term exam? Here’s a quick guide with essential questions and answers for the 2024-25 session. Key question: Which country experienced civil war due to majoritarianism? Answer: Sri Lanka. This guide simplifies your revision and focuses on important topics from the social science syllabus to help you study better!

case study based questions class 10 physics

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CBSE Class 10 Science Case Study Questions Download Free PDF

If you are looking for the CBSE Class 10 Science Case Study Questions in PDF, then you are in the right place. CBSE 10th Class Case Study for the Science Subject is available here. These Case studies can help the students to solve the different types of questions that are based on the case study.

case study based questions class 10 physics

CBSE Board will be asking case study questions based on Science subjects in the upcoming board exams. Thus, it becomes an essential resource to study. 

The Science Subject case study for class 10th covers a wide range of chapters from the Science. Students willing to score good marks in their board exams can use it. The questions are highly interactive and it allows students to use their thoughts and skills to solve such kinds of questions.

Case Study Questions Class 10 Science

In board exams, students will find the questions based on assertion and reasoning . Also, there will be a few questions based on case studies. In that, a paragraph will be given, and then the MCQ questions based on it will be asked.

  • Case Study Questions for Chapter 1 Chemical Reactions and Equations
  • Case Study Questions for Chapter 2 Acids, Bases, and Salts
  • Case Study Questions for Chapter 3 Metals and Non-Metals
  • Case Study Questions for Chapter 4 Carbon and Its Compounds
  • Case Study Questions for Chapter 5 Periodic Classification of elements
  • Case Study Questions for Chapter 6 Life Processes
  • Case Study Questions for Chapter 7 Control and Coordination
  • Case Study Questions for Chapter 8 How do organisms reproduce?
  • Case Study Questions for Chapter 9 Heredity and Evolution
  • Case Study Questions for Chapter 10 Light reflection and refraction
  • Case Study Questions for Chapter 11 Human eye and colorful world
  • Case Study Questions for Chapter 12 Electricity
  • Case Study Questions for Chapter 13 Magnetic effects of current
  • Case Study Questions for Chapter 15 Our Environment

The above  Case studies  for CBSE Class 10 Science will help you to score good marks in the Case Study questions that have been coming in your examinations. These CBSE Class 10 Science Case Study have been developed by experts of cbseexperts.com   for benefit of Class 10 students.

Class 10 Science Assertion and Reason Questions

Case Study Type Questions in Science Class 10

Case Study Type Questions in Science Class 10 include the information or data. Students willing to solve them are required to read the passage carefully and then solve them. While solving the paragraph the ideal way is to highlight the key information or given data.

Because later it will ease them to write the final answers. Science Case study type questions consist of 4 to 5 questions that should be answered in an MCQ manner. 

While reading the paragraph students will get the clue in between about the possible answer of the question. They should definitely highlight those questions. This is the best way to solve such kind of Case study Type Questions.

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Case Study Questions Class 10 Science Electricity

Case study questions class 10 science chapter 12 electricity, case study: 1.

Thus, V= IR

The SI unit of resistance is ohm while the SI unit of electric current is ampere. The potential difference is measured in volt. Conductors are the materials which are having less resistivity or more conductivity and hence they are used for transmission of electricity. Alloys are having more resistivity than conductors and hence they are used in electric heating devices. While insulators are bad conductors of electricity.

3) Why tungsten is used in electric bulbs?

4) 1M ohm = 10 6 ohm

Case study: 2

Again, IR = IR1 + IR2 + IR3

Thus, total current through the circuit is the sum of current flowing through each resistor.

I = I1 + I2 + I3

 Questions:

3) If n resistors of resistance R are connected in parallel then what is the equivalent resistance?

1/Re = 1/R + 1/R + 1/R +….n times 1/R

Thus, 1/Re = n/R

Case study:3

The rate of doing work  or rate of consumption of energy is called as power. Here, the rate at which electric energy dissipated or consumed in an electric circuit is called as electric power. And it is given by P= VI

3) 1KW h = ?

2) In case of electric circuit fuse is connected in series with the circuit which protects the electric devices by stopping the extra current flowing through them. When a large amount of current is flowing through the circuit the temperature of the fuse wire increases and because of that fuse wire melts which breaks the circuit.

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Case Study Questions Class 10 Science Chapter 12 Electricity

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Case study Questions Class 10 Science Chapter 12  are very important to solve for your exam. Class 10 Science Chapter 12 Case Study Questions have been prepared for the latest exam pattern. You can check your knowledge by solving case study-based questions for Class 10 Science Chapter 12 Electricity

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In CBSE Class 10 Science Paper, Students will have to answer some questions based on  Assertion and Reason . There will be a few questions based on case studies and passage-based as well. In that, a paragraph will be given, and then the MCQ questions based on it will be asked.

Electricity Case Study Questions With Answers

Here, we have provided case-based/passage-based questions for Class 10 Science  Chapter 12 Electricity

Case Study/Passage Based Questions

Question 1:

The heating effect of current is obtained by the transformation of electrical energy into heat energy. Just as mechanical energy used to overcome friction is covered into heat, in the same way, electrical energy is converted into heat energy when an electric current flows through a resistance wire. The heat produced in a conductor, when a current flows through it is found to depend directly on (a) strength of current (b) resistance of the conductor (c) time for which the current flows. The mathematical expression is given by H = I 2 Rt. The electrical fuse, electrical heater, electric iron, electric geyser, etc. all are based on the heating effect of current.

(i) What are the properties of heating elements? (a) High resistance, high melting point (b) Low resistance, high melting point (c) Low resistance, high melting point (d) Low resistance, low melting point.

Answer: (b) Low resistance, high melting point

(ii) What are the properties of an electric fuse? (a) Low resistance, low melting point (b) High resistance, high melting point. (c) High resistance, low melting point (d) Low resistance, high melting point

Answer: (c) High resistance, low melting point

(iii) When the current is doubled in a heating device and time is halved, the heat energy produced is

(a) doubled(b) halved
(c) four times(d) one fourth times

Answer: (a) doubled ​

(iv) A fuse wire melts at 5 A. It is is desired that the fuse wire of same material melt at 10 A. The new radius of the wire is

(a) 4 times(b) 2 times
(c) 6 times(d) 8 times

Answer: (b) 2 times ​

(v) When a current of 0.5 A passes through a conductor for 5 min and the resistance of conductor is 10 ohm, the amount of heat produced is

(a) 250 J(b) 5000J
(c) 750J(d) 1000J

Answer: (c) 750J ​

Question 2:

The relationship between potential difference and the current was first established by George Simon Ohm. This relationship is known as Ohm’s law. According to this law, the current passed through a conductor is proportional to the potential difference applied between its ends provided the temperature remains constant i.e. I ∝ V or V = IR where R is the constant for the conductor and it is known as the resistance of the conductor. Although Ohm’s law has been found valid over a large class of materials, there are some materials that do not hold Ohm’s law.

2.1) Name the law which is illustrated by the VI graph. (a) Lenz law (b) Faraday’s law (c) Ohm’s law (d) Newton’s law

Answer(c) Ohm’s law

2.2) By increasing the voltage across a conductor, the (a) current will decrease (b) current will increase (c) resistance will increase (d) resistance will decrease

Answer(b) current will increase

2.3) When a battery of 9 V is connected across a conductor and the current flows is 0.1 A, the resistance is (a) 9 Ohm (b) 0.9 Ohm (c) 90 Ohm (d) 900 Ohm

Answer(c) 90 Ohm​

2.4) If both the potential difference and resistance in a circuit are doubled then : (a) current remains same (b) current becomes double (c) current becomes zero (d) current becomes half

Answer(a) current remains same

2.5) Keeping the potential difference constant, the resistance of a circuit is doubled. The current will become : (a) double (b) half (c) one fourth (d) 4 time

Answer(b) half

Case Study 3

3.1) The current passing through an electric kettle has been doubled. The heat produced will become : (a) half (b) double (c) four times (d) one fourth

Answer(c) four times

3.2) The heat produced in a wire of resistance ‘a’ when a current ‘b’ flows through it in time ‘c’ is given by : (a) a 2 bc (b) abc 2 (c) ab 2 c (d) abc

Answer(c) ab2c

3.3) What are the properties of heating element ? (a) high resistance, high melting point (b) low resistance, high melting point (c) low resistance, high melting point (d) low resistance, low melting point

Answer (a) high resistance, high melting point

3.4) Calculate the heat produced when 96,000 coulombs of charge is transferred in one hour through a potential difference of 50 volts. (a) 4788 J (b) 4788 kJ (c) 478 kJ (d) 478 J

Answer (b) 4788 kJ

3.5) Which of the following characteristic is not suitable for a fuse wire ? (a) thin and short (b) low melting point (c) thick and short (d) high resistance

Answer (c) thick and short

Case Study 4

Substance through which charges cannot pass is called insulators. Glass, pure water, and all gases are insulators. Insulators are also called dielectrics. In insulators, the electrons are strongly bound to their atoms and cannot get themselves freed. Thus, free electrons are absent in insulators. Insulators can easily be charged by friction. This is due to the reason that when an electric charge is given to an insulator, it is unable to move freely and remains localized. But this does not mean that conductors cannot be charged. A metal rod can be charged by rubbing it with silk if it is held in a handle of glass or amber

4.1) Calculate the current in a wire if a 1500 C charge is passed through it in 5 minutes. (a) 2 A (b) 5 A (c) 3 A (d) 4 A

Answer (b) 5 A

4.2) Electrons and conventional current flows in : (a) The same direction (b) The opposite direction (c) Any direction (d) Can’t say

Answer (b) The opposite direction

4.3) If the current passing through a lamp is 5 A, what charge passes in 10 second ? (a) 0.5 C (b) 3 C (c) 5 C (d) 50 C

Answer (d) 50 C

4.4) One-coulomb charge is equivalent to the charge contained in : (a) 6.2 × 10 19  electrons (b) 2.6 × 10 18  electrons (c) 2.65 × 10 19  electrons (d) 6.25 × 10 18  electrons

Answer (d) 6.25 × 1018 electrons

4.5) When an electric lamp is connected to 12 V battery, it draws a current of 0.5 A. The power of the lamp is :  (a) 0.5 W (b) 6 W (c) 12 W (d) 24 W

Answer (b) 6 W

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  • The Human Eye and the Colourful World Class 10 Case Study Questions Science Chapter 11

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Last Updated on August 30, 2024 by XAM CONTENT

Hello students, we are providing case study questions for class 10 science. Case study questions are the new question format that is introduced in CBSE board. The resources for case study questions are very less. So, to help students we have created chapterwise case study questions for class 10 science. In this article, you will find case study questions for cbse class 10 science chapter 11 The Human Eye and the Colourful World.

The Human Eye and the Colourful World
Case Study Questions
Competency Based Questions
CBSE
10
Science
Class 10 Studying Students
Yes
Mentioned

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Table of Contents

Case Study Questions on The Human Eye and the Colourful World

Question 1:

Read the following and answer the questions given below:

Light of all the colour travel at the same speed in vacuum for all wavelengths. But in any transparent medium (glass or water), the light of different colours travel with different speeds for different wavelength that means that the refractive index of a particular medium is different for different wavelength. As there is a difference in their speeds, the light of different colour bend through different angles. The speed of violet colour is maximum and the speed of red colour is minimum in glass so, the red light deviates least and violet colour deviates most. Hence, higher the wavelength of a colour of light, smaller the refractive index and less is the bending of light.

λ r > λ v  and r n < v n . Also frequency, ν = c/λ.

(i) Which of the following statements is correct regarding the propagation of light of different colours of white light in air? (a) Red light moves fastest. (b) Blue light moves faster than green light. (c) All the colours of the white light move with the same speed. (d) Yellow light moves with the mean speed as that of the red and the violet light.

Difficulty Level: Medium

Ans. Option (c) is correct. Explanation: All the colours of the white light move with the same speed in air.

(ii) Which of the following is the correct order of wavelength? (a) Red > Green > Yellow (b) Red > Violet > Green (c) Yellow > Green > Violet (d) Red > Yellow > Orange

Difficulty Level: Easy

Ans. Option (c) is correct. Explanation: The increasing order of wavelength of visible spectrum is Violet < Indigo < Blue < Green < Yellow < Orange < Red So, the correct order is Yellow > Green > Violet

(iii) Which of the following is the correct order of speed of light in glass? (a) Red > Green > Blue (b) Blue > Green > Red (c) Violet > Red > Green (d) Green > Red > Blue

Ans. Option (b) is correct. Explanation: The more be the wavelength, more be the speed.

(iv) Which colour which has maximum frequency (a) Red (b) Violet (c) Blue (d) Green

Ans. Option (b) is correct. Explanation: Frequency is inversely proportional to the wavelength. Violet has minimum wavelength among all these colours, so violet has maximum frequency.

(v) Which of the following is the correct order of angle of deviation? (a) Red > Green > Blue (b) Blue > Yellow > Orange (c) Orange > Red > Green (d) Blue > Green > Violet

Ans. Option (b) is correct. Explanation: The angle of deviation is more for more refractive index.

Question 2:

The spreading of light by the air molecules is called scattering of light. The light having least wavelength scatters more. The sun appears red at sunrise and sunset, appearance of blue sky it is due to the scattering of light. The colour of the scattered light depends on the size of particles. The smaller the molecules in the atmosphere scatter smaller wavelengths of light. The amount of scattering of light depends on the wavelength of light. When light from sun enters the earth’s atmosphere, it gets scattered by the dust particles and air molecules present in the atmosphere. The path of sunlight entering in the dark room through a fine hole is seen because of scattering of the sun light by the dust particles present in its path inside the room.

(i) To an astronaut in a spaceship, the colour of earth appears (a) red (b) blue (c) white (d) black

Ans. Option (b) is correct. Explanation: Light is scattered by the air molecules present in atmosphere.

(ii) At the time of sunrise and sunset, the light from sun has to travel. (a) longest distance of atmosphere (c) both (a) and (b) (b) shortest distance of atmosphere (d) can’t say

Ans. Option (a) is correct. Explanation: As the distance between us and sun is more at the time of sunrise and sunset.

(iii) The colour of sky appears blue, it is due to the (a) refraction of light through the atmosphere (b) dispersion of light by air molecules (c) scattering of light by air molecules (d) all of these.

Ans. Option (c) is correct. Explanation: Due to the more scattering of blue colour by molecules of air.

(iv) At the time of sunrise and sunset (a) Blue colour scattered and red colour reaches our eye (b) Red colour scattered and blue colour reaches our eye (c) Green and blue scattered and orange reaches our eye (d) None of these

Ans. Option (a) is correct. Explanation: Red light being of largest wavelength blue scatter more, red scattered least.

(v) The danger signs made red in colour, because (a) the red light can be seen from farthest distance (b) the scattering of red light is least (c) both (a) and (b) (d) none of these

Ans. Option (c) is correct. Explanation: Scattering is least but velocity of red light is more.

  • Electricity Class 10 Case Study Questions Science Chapter 12
  • Metals and Non-metals Class 10 Case Study Questions Science Chapter 3
  • Light – Reflection and Refraction Class 10 Case Study Questions Science Chapter 10
  • Life Processes Class 10 Case Study Questions Science Chapter 6

Acids Bases and Salts Class 10 Case Study Questions Science Chapter 2

Chemical reactions and equations class 10 case study questions science chapter 1, topics from which case study questions may be asked.

  • Structure of the Human Eye
  • Functioning of the Eye
  • Defects of Vision and Their Correction
  • Prism and the Refractive Index
  • Dispersion of Light
  • Atmospheric Refraction
  • Scattering of Light

Case study questions from the above topics may be asked.

Helpful Links for CBSE Class 10 Science Preparation

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Frequently Asked Questions (FAQs) on The Human Eye and the Colourful World Case Study Questions

Q1: what are case study questions for cbse examinations.

A1: Case study questions in CBSE examinations typically involve scenarios or real-life examples, requiring students to apply their understanding of concepts to solve problems or analyze situations.

Q2: Why are case study questions important for understanding class 10 science chapters?

A2: Case study questions provide a practical context for students to apply theoretical knowledge to real-world situations, fostering deeper understanding and critical thinking skills.

Q3: How should students approach answering case study questions for CBSE?

A3: Students should carefully read the case study, identify the key issues or problems presented, analyze the information provided, apply relevant concepts and principles of chemical reactions and equations, and formulate well-supported solutions or responses.

Q4: Are there any resources available online for students to practice case study questions on class 10 science chapters for CBSE exams?

A4: Yes, several educational websites offer case study questions for CBSE students preparing for science examinations. We also offer a collection of case study questions for all classes and subject on our website. Visit our  website  to access these questions and enhance your learning experience. If you need more case study questions for your preparation, then you visit Physics Gurukul website.

Q5: How can students effectively prepare for case study questions on The Human Eye and the Colourful World for CBSE exams?

A5: Effective preparation strategies include regular revision of concepts, solving practice questions, analyzing case studies from previous exams, seeking clarification on doubts, and consulting with teachers or peers for guidance and support.

Q6: How can teachers incorporate case study questions on The Human Eye and the Colourful World class 10 science into classroom teaching?

A6: Teachers can integrate case studies into lesson plans, group discussions, or interactive activities to engage students in active learning, promote problem-solving skills, and facilitate a deeper understanding of The Human Eye and the Colourful World.

Q7: What is the power of accommodation of a normal eye?

Ans. A normal eye has a power of accommodation which enables objects as far as infinity and as close as 25 cm to be focussed on the retina.

Q8: What is meant by spherical aberration of a lens?

A8: The inability of a lens to bring all the rays coming from a point object to focus at a single point is known as spherical aberration.

Q9: Is the focal length of our eye lens fixed?

Q10: what is astigmatism how is it corrected.

A10: It is that defect of the eye due to which the image of a distant point source of light is formed, not as a point but as a vertical or a horizontal line. It can be corrected by using cylindrical lenses.

Q11: White light consists of seven colours. Is the refractive index of glass same for all colours?

A11: The refractive index of glass is different for each of the colours.

Q12: When a monochromatic light passes through a prism, will it show dispersion?

A12: No, it will not show any dispersion but will show only deviation.

Q13: When does an object appear black?

A13: When it absorbs all the colours incident on it.

Q14: Why does a rose appear red in daylight?

A14: Because it reflects only red colour to our eye, out of all the seven colours of sun light falling on it.

The Human Eye and the Colourful World Class 10 Case Study Questions Science Chapter 11

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Case Study and Passage Based Questions for Class 10 Science Chapter 1 Chemical Reactions and Equations

  • Last modified on: 4 months ago
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In CBSE Class 10 Science Paper, Students will have to answer some questions based on Assertion and Reason . There will be a few questions based on case studies and passage based as well. In that, a paragraph will be given, and then the MCQ questions based on it will be asked.

Here, we have provided case based/passage based questions for Class 10 Science Chapter 1 Chemical Reactions and Equations.

Case Study and Passage Based Questions for Class 10 Science Chapter 1 Chemical Reactions and Equations

CBSE
U Class 10 Students
Science
Chapter 1 Chemical Reactions and Equations
Case Study Questions
3
Yes

Table of Contents

Case Study/Passage Based Questions on Chemical Reactions and Equations

Case Study/Passage Based Questions

Question 1:

Corrosion is the phenomenon of deterioration of surface of metal in presence of air and moisture. It is a natural process and in the presence of a moist atmosphere, chemically active metals get corroded. This is an oxidation reaction. Rusting is the process where iron corrodes due to exposure to the atmosphere. The main circumstance of corrosion occurs with iron because it is a structural material in construction, bridges, buildings, rail transport, ships, etc. Aluminium is also an important structural metal, but even aluminium undergoes oxidation reactions. However, aluminium doesn’t corrode or oxidize as rapidly as its reactivity suggests. Copper (Cu) corrodes and forms a basic green carbonate.

(i) What is rusting?

(ii) Which two metals do not corrode easily?

(iii) Write the chemical name of the compound formed on corrosion of silver.

(iv) Corrosion is (a) a redox reaction (b) a reduction reaction (c) a displacement reaction (d) an oxidation reaction

Also read: Assertion Reason Questions for Class 10 Science Chapter 1 Chemical Reactions and Equations

Question 2:

Oxidation is the process of gaining of oxygen, or losing of hydrogen. Reduction is the process of losing of oxygen or gaining of hydrogen. The substance which undergoes oxidation is the reducing agent while the substance which undergoes reduction is known as the oxidising agent. Oxidation and reduction always take place together and these type of reactions are known as redox reactions. Some of the examples of redox reactions are given below:

case study based questions class 10 physics

(i) Give two examples of oxidation reaction from your everyday life.

(ii) Write the oxidising agent in the reaction III and VI.

(iii) Which of the following is an oxidising agent? (a) LiAlH 4 (b) Alkaline KMnO 4 (c) Acidified K 2 Cr 2 O 7 (d) Both (b) and (c)

(iv) Out of oxidation and reduction, which reaction takes place at anode?

Also read: Extra Questions for Class 10 Science Chapter 1 Chemical Reactions and Equations

Question 3:

A chemical reaction is a representation of chemical change in terms of symbols and formulae of reactants and products. There are various types of chemical reactions like combination, decomposition, displacement, double displacement, oxidation and reduction reactions. Reactions in which heat is released along with the formation of products are called exothermic chemical reactions. All combustion reactions are exothermic reactions.

(i) The chemical reaction in which a single substance breaks down into two or more simpler substances upon heating is known as (a) thermal decomposition reaction (b) photo decomposition reaction (c) electric decomposition reaction (d) both (a) and (c)

(ii) The massive force that pushes the rocket forward through space is generated due to the (a) combination reaction (b) decomposition reaction (c) displacement reaction (d) double displacement reaction

(iii) A white salt on heating decomposes to give brown fumes and yellow residue is left behind. The yellow residue left is of (a) lead nitrate (b) nitrogen oxide (c) lead oxide (d) oxygen gas

(iv) Which of the following reactions represents a combination reaction? (a) CaO (s) + H 2 O (l) → Ca(OH) 2 (aq) (b) CaCO 3 (s) → CaO (s) + CO 2 (g) (c) Zn(s) + CuSO 4 (aq) → ZnSO 4 (aq) + Cu(s) (d) 2FeSO 4 (s) → Fe 2 O 3 (s) +SO 2 (g) + SO 3 (g)

(v) Complete the following statements by choosing correct type of reaction for X and Y. Statement 1: The heating of lead nitrate is an example of ‘X’ reaction. Statement 2: The burning of magnesium is an example of ‘Y’ reaction. (a) X- Combination, Y- Decomposition (b) X- Decomposition, Y-Combination (c) X- Combination, Y-Displacement (d) X- Displacement, Y-Decomposition

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4 thoughts on “ Case Study and Passage Based Questions for Class 10 Science Chapter 1 Chemical Reactions and Equations ”

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Good examples! But can you please available practical types and equations type of case based questions which we can read and learn an then they help us to solve the Boards examm. Pleaseeww🙂🙂🙂

' src=

would love to see more equation based questions. nevertheless, it proved quite useful in my revision!

' src=

after going through the above content child should develops ideas to answer based on knowledge acquired.

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ICSE Competency Based Questions Physics | Class 10 Competency Practice Questions

ICSE Competency Based Questions Physics are available for download here on aglasem.com. These ICSE Competency Based Questions include MCQs, fill in the blanks, short answer questions, long answer questions, and answer key from the Physics curriculum and need you to apply understanding a little beyond the ICSE class 10 textbook. For CISCE students, understanding and mastering these questions is crucial for success in Physics exam. Here you will understand what Competency Based Questions for Physics are, how they differ from traditional questions, and get tips on tackling these questions. You can also download ICSE Competency Based Questions Physics PDF for Class 10 below.

ICSE Competency Based Questions Physics

Here you can access a wide array of ICSE Competency Based Questions for the Physics subject. The PDF includes Multiple Choice Questions, Fill in the Blanks, Short Answer Questions, and Long Answer Questions, along with the answer key for class 10 Physics. The ICSE Competency Based Questions for Class 10 Physics can be found here.

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ICSE Competency Based Questions Physics PDF

The complete pdf for competency focused practice questions for Physics is as follows.

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What are Physics Competency Based Questions?

These are designed to evaluate a student’s understanding of concepts of Physics, their ability to apply knowledge in real-life situations, and their critical thinking skills. Unlike traditional questions that may focus on rote learning or memorization, Competency Focused Questions require students to demonstrate a deeper comprehension of the subject matter (Physics). These questions measure various competencies in the Physics subject, such as problem-solving, logical reasoning, creativity, and subject-specific skills.

For Class 10 Competency Based Questions of Physics , students are expected to think beyond the Physics textbook and demonstrate their skills in a way that aligns with real-world applications.

ICSE 10 Competency Based Questions

In addition to Physics, the Competency Focused Questions for all subjects for CISCE students in 10th standard are as follows.

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CISCE Class 10 Physics Competency Questions  – An Overview

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Competency Based Questions are revolutionizing the way ICSE students approach their studies. By focusing on the core competencies required by the ICSE board, students in Class 10 can develop the skills necessary to excel academically and beyond. Whether you are dealing with Class 10 Physics Competency Based Questions or any other subject, remember to focus on understanding, application, and critical thinking.

Start practicing today, and make these questions a core part of your study strategy. The more you engage with these questions, the more confident you’ll become in your ability to tackle any challenge that comes your way!

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CBSE Class 12 Physics Competency-Based Questions With Answer Key 2024-25: FREE PDF Download

Cbse class 12 physics practice questions 2025: the 2024-25 competency-focused questions for cbse class 12 physics are given here. check and download the mcqs and free response questions in pdf format..

Anisha Mishra

CBSE 2024-25 Competency-Based Questions With Answers: The Central Baord of Secondary Education (CBSE) has officially released the practice question paper for the academic year 2024-25, for the classes 10th  and 12th on its official website. Competency-focused questions can be helpful for students to secure good marks while referring and practicing them. It will help students to get familiar with the style and format of questions which are expected to appear in the final examinations.

Importance of CBSE Class 12 Competency-Based Questions and Answers 2025

  • It informs students about the level of practicality in questions
  • Imparts the difficulty level of questions
  • This helps students prepare a certain variety of questions for exam 
  • Assesses the preparation level of students
  • Provides students with an opportunity to analyze their weak and strong points
  • Provide scope for improvement

CBSE Class 12 Physics Chapter-Wise Competency-Based Questions

CBSE Class 12 Physics Syllabus 2024-25

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CBSE Class 12 Physics Deleted Syllabus 2024-25

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IMAGES

  1. Case Study Questions CBSE Class 10 Physics

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  2. CBSE Important Diagram Based Questions Class 10 Physics BOARD Exams

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  3. Solved Icse Class 10 Physics Previous Year Question Papers Download

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  5. Important Questions For Class 10 Science Chapter 10 Light Reflection

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  1. Case -Study Based Questions Class 10 Science || Previous Year Questions|| CBSE 2024 Boards|

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  6. Class 10 Science Case study questions I Light Reflection and refraction I CBSE Exam 2021 I Malayalam

COMMENTS

  1. Case Study and Passage Based Questions for Class 10 Science Chapter 10

    Case Study and Passage Based Questions for Class 10 ...

  2. Case Study Questions Class 10 Science

    Case Study Questions Class 10 Science

  3. CBSE Class 10 Science Chapter Wise Important Case Study Questions

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  4. Class 10 Science Case Study Questions PDF Download

    To support your preparation for Class 10 Science examinations, we have created a comprehensive PDF resource containing a collection of case study questions designed specifically for this subject. This PDF includes a variety of case studies covering different topics in Physics, Chemistry, and Biology. It will provide you with ample practice ...

  5. Light

    Explanation: In a convex spherical mirror, reflection of light takes place at a bulging-out surface. Question 2: Read the following and answer the questions given below: A lens is a piece of any transparent material bounded by two curved surfaces. There are two types of lenses convex lens and concave lens.

  6. Case Study Questions Class 10 Science

    Contents. Case Study Questions Class 10 Science Chapter 10 Light Reflection and Refraction Case study:1 Case study: 2 Case study:3. At Case Study Questions there will given a Paragraph. In where some Important Questions will made on that respective Case Based Study. There will various types of marks will given 1 marks, 2 marks, 3 marks, 4 marks.

  7. Case Study Class 10 Science Questions and Answers (Download PDF)

    Accurate answers of all the Case-based questions given in the PDF. Case Study class 10 Science solutions are prepared by subject experts referring to the CBSE Syllabus of class 10. Free to download in Portable Document Format (PDF) so that students can study without having access to the internet.

  8. Case Study Questions for Class 10 Science Chapter 13 Magnetic Effect of

    Case Study Questions for Class 10 Science Chapter 13 Magnetic Effect of Electric Current Question 1: A student wants to study the working of electric motor. He used a model of DC motor for electromagnetism as shown in figure. He fixed the two ends of the coil to a pair of curved elastic metal strips. … Continue reading Case Study Questions for Class 10 Science Chapter 13 Magnetic Effect of ...

  9. Class 10 Science: Case Study Chapter 10 Light Reflection and Refraction

    Here, we have provided case-based/passage-based questions for Class 10 Science Chapter 10 Light Reflection and Refraction. Case Study/Passage-Based Questions. Question 1: The spherical mirror forms different types of images when the object is placed at different locations. When the image is formed on the screen, the image is real and when the ...

  10. Case Study Questions Class 10 Science Chapter 13 Magnetic Effects of

    Here, we have provided case-based/passage-based questions for Class 10 Science Chapter 13 Magnetic Effects of Electric Current. Case Study/Passage Based Questions. Question 1: An electric motor is a rotating device that converts electrical energy into mechanical energy electric motors are used as an important component in electric fans ...

  11. CBSE 10th Science Light Reflection and Refraction Case Study Questions

    CBSE 10th Science Light Reflection and Refraction Case ...

  12. Case Study Chapter 10 Light Reflection and Refraction

    Answer. Case/Passage - 3. Inside a substance such as glass or water, light travels more slowly than it does in a vacuum. If c denotes the speed of light in a vacuum and v denotes its speed through some other substance, then v = c/n where n is a constant called the index of refraction. To good approximation, a substance's index of refraction ...

  13. Case Study and Passage Based Questions for Class 10 Science Chapter 11

    In CBSE Class 10 Science Paper, Students will have to answer some questions based on Assertion and Reason. There will be a few questions based on case studies and passage based as well. In that, a paragraph will be given, and then the MCQ questions based on it will be asked. Here, we have provided case … Continue reading Case Study and Passage Based Questions for Class 10 Science Chapter 11 ...

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    CBSE Class 10th - SCIENCE : Chapterwise Case Study ...

  15. Important Case Study Questions for CBSE Class 10 Science Exam 2024 with

    The CBSE Class 10 Science Question Bank on Case Studies, provided in this article, can be very helpful for understanding how the source based or case based questions are asked in the board exam.

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  17. CBSE Class 10 Science Case Study Questions Download Free PDF

    Case Study Questions Class 10 Science. In board exams, students will find the questions based on assertion and reasoning. Also, there will be a few questions based on case studies. In that, a paragraph will be given, and then the MCQ questions based on it will be asked. Case Study Questions for Chapter 1 Chemical Reactions and Equations.

  18. Category: Case Study Questions for Class 10 Science

    December 19, 2021 March 19, 2023 Physics Gurukul 1 Comment on Case Study and Passage Based Questions for Class 10 Science Chapter 8 How Do Organisms Reproduce. ... August 5, 2021 August 5, 2021 Physics Gurukul 2 Comments on Case Study and Passage Based Questions for Class 10 Science Chapter 11 The Human Eye and The Colourful World.

  19. CBSE Class 10 Physics Case Study Questions

    CBSE Class 10 Physics Frequently Asked Questions. TopperLearning provides a complete collection of case studies for CBSE Class 10 Physics students. Improve your understanding of biological concepts and develop problem-solving skills with expert advice.

  20. Case Study Questions Class 10 Science Electricity

    Case Study Questions Class 10 Science - Electricity

  21. Case Study Questions Class 10 Science Chapter 12 Electricity

    Case Study/Passage Based Questions. Question 1: The heating effect of current is obtained by the transformation of electrical energy into heat energy. Just as mechanical energy used to overcome friction is covered into heat, in the same way, electrical energy is converted into heat energy when an electric current flows through a resistance wire.

  22. The Human Eye and the Colourful World Class 10 Case Study Questions

    Hello students, we are providing case study questions for class 10 science. Case study questions are the new question format that is introduced in CBSE board. ... Download 65 Important Numerical Problems for CBSE Class 10 Physics; Download 60 Important Diagram Based Questions for CBSE Class 10 Physics;

  23. Case Study and Passage Based Questions for Class 10 Science Chapter 1

    In CBSE Class 10 Science Paper, Students will have to answer some questions based on Assertion and Reason. There will be a few questions based on case studies and passage based as well. In that, a paragraph will be given, and then the MCQ questions based on it will be asked. Here, we have provided … Continue reading Case Study and Passage Based Questions for Class 10 Science Chapter 1 ...

  24. ICSE Competency Based Questions Physics

    Competency Based Questions are revolutionizing the way ICSE students approach their studies. By focusing on the core competencies required by the ICSE board, students in Class 10 can develop the skills necessary to excel academically and beyond. Whether you are dealing with Class 10 Physics Competency Based Questions or any other subject, remember to focus on understanding, application, and ...

  25. CBSE Class 12 Physics Competency-Based Questions For 2025 Exams With

    Physics Practice Questions 2025: Get here the FREE PDF download for the CBSE Class 12 Physics Competency-Based Questions of all topics for the 2025 board exams.