Light – Reflection and Refraction Class 10 MCQ Quiz – Test Your Understanding!

Are you preparing for CBSE Class 10 Science Chapter 9 "Light – Reflection and Refraction"? This interactive MCQ quiz will help you revise important concepts, formulas, and numerical problems in an engaging way!

About the Quiz

Chapter Name: Light – Reflection and Refraction
Subject: Class 10 Science (Physics)
Question Type: Multiple Choice Questions (MCQs)
Difficulty Level: Concept-Based & Exam-Oriented
Leaderboard: Yes (Check Your Rank!)

Why Take This Quiz?

✔ Covers mirror and lens formulas, ray diagrams, and practical applications
✔ Includes competency-based & numerical-based MCQs
✔ Perfect for quick revision before CBSE board exams

Click Below to Start the Quiz!

Chapter 9 - Light - Reflection and Refraction

1 / 15

A. Noor, a young student, was trying to demonstrate some properties of light in her science project work. She kept ‘X’ inside the box (as shown in the figure) and with the help of a laser pointer made light rays pass through the holes on one side of the box. She had a small butter paper screen to see the spots of light being cast as they emerged.

Light reflection and refraction class 10 important questions 1

If the object inside the box was made of a material with a refractive index less than 1.5 then the

Lateral shift of the rays would have been less

Lateral shift of the rays would remain the same as before

There is not enough information to comment on any of the above statements

Lateral shift of the rays would have been more

2 / 15

Sumati wanted to see the stars of the night sky. She knows that she needs a telescope to see those distant stars. She finds out that the telescopes, which are made of lenses, are called telescopes and the ones which are made of mirrors are called reflecting telescopes.

So she decided to make a refracting telescope. She bought two lenses L₁ and L₂ out of which L₁ was bigger and L₂ was smaller. The larger lens gathers and bends the light, while the smaller lens magnifies the image. Big, thick lenses are more powerful. So to see far away, she needed a big powerful lens. Unfortunately, she realized that a big lens is very heavy.

Light reflection and refraction class 10 important questions and answers

Heavy lenses are hard to make and difficult to hold in the right place. Also since the light is passing through the lens, the surface of the lens has to be extremely smooth. Any flaws in the lens will change the image. It would be like looking through a dirty window.

Sumati bought not-so-thick lenses for the telescope and polished them. What advantages, if any, would she have with her choice of lenses?

Thicker lenses would have made the telescope easier to handle.

Not-so-thick lenses will give her more magnification.

She will not have any advantage as even thicker lenses would give clearer images.

Not-so-thick lenses would not make the telescope very heavy and also allow a considerable amount of light to pass.

3 / 15

Which of the following can make a parallel beam of light when light from a point source is incident on it?

Convex mirror as well as a concave lens.

Concave mirror as well as a convex lens.

Two plane mirrors placed at 90° to each other.

Concave mirror as well as a concave lens.

4 / 15

If the real image of a candle flame formed by a lens is three times the size of the flame and the distance between the lens and image is 80 cm, at what distance should the candle be placed from the lens?

-40 cm

-80 cm

-80/3 cm

-40/3 cm

5 / 15

A small electric lamp is placed at the focus of a convex lens. When the lamp is switched on, the lens will produce:

A parallel beam of light

A diverging beam of light

Converging beam of light

A diffused beam of light

6 / 15

No matter how far you stand from this spherical mirror, your image always appears erect. The mirror may be:

Also See: CBSE Class 10: Subject-Wise Blueprints

Convex

Either plane or convex

Plane

Concave

7 / 15

The figure below shows a ray of light as it travels from medium A to medium B. Refractive index of medium B relative to medium A is

Figure below shows a ray of light as it travels from medium A to medium B. Refractive index of the medium B relative to medium A is

√2/√3

1/√2

√2

√3/√2

8 / 15

As a ray of light entered medium P from medium Q, its velocity increased.

What can be said about the refractive index of medium P as compared to that of medium Q?

Nothing can be said without knowing what medium P and medium Q are.

It is higher.

It is the same.

It is lower.

9 / 15

Rays from the sun converge at a point 15 cm in front of a concave mirror. Where should an object be placed so that the size of its image is equal to the size of the object?

Between 15 cm and 30 cm in front of the mirror

30 cm in front of the mirror

15 cm in front of the mirror

More than 30 cm in front of the mirror

10 / 15

Which of the following mirror is used by a dentist to examine a small cavity in a patient’s teeth?

Concave mirror

Any spherical mirror

Convex mirror

Plane mirror

11 / 15

In the diagram shown below, a beam of light is traveling from inside a glass slab to air. Which of the marked paths will the ray of light take as it emerges from the glass slab?

In the diagram shown below, a beam of light is travelling from inside a glass slab to air. Which of the marked paths will the ray of light take as it emerges from the glass slab

None of them as light splits into its many colors

12 / 15

Based on the diagram shown, what kind of lenses would Sumati need to make the telescope?

Concave lenses

Flat lenses

Bifocal lenses

Convex lenses

13 / 15

In the below diagram light is traveling through different media. It is noted by a scientist that ∠1 = ∠3 = ∠4 but ∠2 = ∠1. Which of the following statement would be correct?

In the below diagram light is travelling through different media. It is noted by a scientist that 1 = 3 = 4 but 2 = 1

Medium 1 is denser than medium 3 but its density is equal to medium 2.

Medium 2 is the rarest medium.

Medium 1 and 3 are essentially the same medium, but medium 2 is denser than 1 and 3.

Medium 3 is denser than medium 1.

14 / 15

The below lens has a focal length of 10 cm. The object of height 2 mm is placed at a distance of 5 cm from the pole. Find the height of the image.

3.33 mm

6.67 mm

4 mm

4 cm

15 / 15

Rajan takes the following two photographs of the text in a book, first while keeping a circular piece of glass on the book and then while holding it at some distance above the book.

Which of the following statements is true about the piece of glass?

Also See: The Rise of Nationalism in Europe MCQs | Class 10 History Quiz with Answers

It is a plane glass disc as there is no difference in the text.

It is a concave lens as the text is diminished in size.

It cannot be predicted based on the given information.

It is a convex lens as the text is not inverted.

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The average score is 55%

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Also See: CBSE Class 10 Maths Blueprint 2024-25: Chapter-Wise Analysis & Tips for Success

Key Topics Covered in the Quiz

✔ Laws of Reflection and Refraction
✔ Mirror and Lens Formula – Numerical Questions
✔ Image Formation by Concave and Convex Mirrors/Lenses
✔ Critical Angle and Total Internal Reflection
✔ Real-Life Applications of Reflection & Refraction

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About the Quiz

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Key Topics Covered in the Quiz

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