Class 7 LIGHT – Question Paper | Science Worksheet

SECTION A: MULTIPLE CHOICE QUESTIONS (MCQs)

(Choose the correct option.)

1. Light travels in a:
   a) Zig-zag path
   b) Straight line
   c) Curved path
   d) Circular path
2. The natural source of light on Earth is:
   a) Candle
   b) Bulb
   c) Sun
   d) Fire
3. The bouncing back of light from a surface is called:
   a) Refraction
   b) Reflection
   c) Dispersion
   d) Transmission
4. An image formed by a plane mirror is:
   a) Inverted
   b) Magnified
   c) Virtual and erect
   d) Real
5. The mirror used by dentists is:
   a) Plane mirror
   b) Convex mirror
   c) Concave mirror
   d) Periscope mirror
6. The image formed by a convex mirror is always:
   a) Real and inverted
   b) Virtual and erect
   c) Enlarged
   d) Of the same size
7. Light can travel through:
   a) Solid only
   b) Liquid only
   c) Air only
   d) Vacuum
8. The lens used to correct short-sightedness is:
   a) Convex lens
   b) Concave lens
   c) Cylindrical lens
   d) Plano lens
9. The order of colours in a rainbow is known as:
   a) ROYGBIV
   b) RGB
   c) CMYK
   d) UVB
10. Splitting of white light into seven colours is called:
    a) Reflection
    b) Absorption
    c) Dispersion
    d) Scattering

SECTION B: ONE-WORD ANSWERS

11. Name the phenomenon that shows left-right reversal in a mirror.
12. What type of image can be formed on a screen?
13. What is the inner curved mirror called?
14. Name the lens that converges light rays.
15. What is the main cause of rainbow formation?

SECTION C: VERY SHORT ANSWERS (1–2 sentences)

16. What is meant by reflection of light?
17. Why is a convex mirror used as a rear-view mirror in vehicles?
18. Define a virtual image.
19. How does a concave lens bend light rays?
20. What happens to the image in a plane mirror when you move farther away from it?

SECTION D: ASSERTION–REASONING QUESTIONS

Choose the correct option:

A. Both A and R are true, and R is the correct explanation of A
B. Both A and R are true, but R is not the correct explanation
C. A is true, but R is false
D. A is false, but R is true

21. Assertion (A): A plane mirror forms a laterally inverted image.
    Reason (R): Light bends when it reflects from a mirror.
22. Assertion (A): A convex lens can form a real image.
    Reason (R): Convex lenses converge light rays to a point.
23. Assertion (A): Concave mirrors are used in headlights.
    Reason (R): They spread light in all directions.
24. Assertion (A): A rough surface causes irregular reflection.
    Reason (R): The reflected rays do not travel in the same direction.
25. Assertion (A): Dispersion occurs when white light passes through a prism.
    Reason (R): White light is a mixture of seven colours.

SECTION E: ANSWER IN BRIEF (3–4 sentences)

26. What are the characteristics of an image formed by a plane mirror?
27. Explain the difference between regular and irregular reflection with examples.
28. Describe the uses of concave mirrors in daily life.
29. Explain how a convex lens forms different types of images based on the distance of the object.
30. What is dispersion of light? How does a rainbow form?

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