Applications of Light Quiz - CBSE Class 6 Science

Free practice quiz: Applications of Light (CBSE Class 6 Science). 14 multiple-choice questions with answers and explanations. Play online, no sign-up needed.

This CBSE Class 6 Science practice quiz has 14 multiple-choice questions on Applications of Light, and 14 of them come with an explanation. Try the 5 sample questions below (tap an option to check yourself), then play the full quiz online. No sign-up needed.

Sample questions

1. What is one of the main applications of a prism?

   1. To split light into colors
   2. To reflect light
   3. To absorb light
   4. To create shadows
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   Answer: A. To split light into colors

   A prism is designed to refract light, which causes it to separate into its constituent colors.

2. How does a magnifying glass help in seeing small objects?

   1. By increasing light
   2. By bending light
   3. By reflecting light
   4. By blocking light
   Show answer

   Answer: B. By bending light

   A magnifying glass bends light rays to make small objects appear larger.

3. If a beam of light passes from air into water, what happens?

   1. Scatters
   2. Reflects
   3. Bends
   4. Absorbs
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   Answer: C. Bends

   When light passes from air into water, it bends due to a change in medium which causes a change in speed.

4. What is the effect of a concave lens on light rays?

   1. Converges them
   2. Diverges them
   3. Blocks them
   4. Reflects them
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   Answer: B. Diverges them

   A concave lens causes parallel light rays to diverge or spread out.

5. What is the primary use of lasers in modern technology?

   1. To scatter light
   2. To amplify light
   3. To absorb light
   4. To bend light
   Show answer

   Answer: B. To amplify light

   Lasers work by amplifying light through stimulated emission, providing coherent light beams.

More questions in this quiz

Answers and explanations are in the full quiz.

1. Which application of light allows us to see objects clearly?
2. Which of these is NOT an application of lenses?
3. What is the purpose of fiber optics?
4. How does a periscope allow us to see over obstacles?
5. What phenomenon does a rainbow arise from?
6. How is light used in communication technology?
7. Calculate the angle of incidence if the angle of reflection is 45 degrees.
8. What happens to light when it passes through a convex lens?
9. A person uses a lens to magnify an object to three times its size. If the object size is 2 cm, what is the image size?

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