MCQ- 2 ICSE Physics class 10 ch-2 Light

Class 10 - Light Quiz

1. What does the principle of reversibility of light state?

Light always travels in straight lines
The path of light is reversible
Light cannot reflect back
Light has different speeds

2. What happens if you interchange the source and observer of light?

The light follows the same path
Light takes a different path
Light stops traveling
Light changes its wavelength

3. What does the experimental verification of refraction prove?

Light cannot bend
Light changes speed and direction
Light has no refraction
Light always travels in air

4. What is the refractive index of a material defined as?

The density of light in a medium
The ratio of speed of light in air to that in medium
The weight of light in a medium
The distance light travels

5. Which instrument is used to experimentally verify the law of refraction?

Glass slab
Magnifying glass
Convex mirror
Barometer

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