MCQ- 8 ICSE Physics class 10 ch-2 Light

Class 10 - Light Quiz (Total Internal Reflection)

1. What is the essential condition for Total Internal Reflection (TIR)?

Light travels from rarer to denser medium
Light travels from denser to rarer medium
Angle of incidence is less than critical angle
Light passes undeviated

2. Which of the following is an application of Total Internal Reflection?

Optical fibers
Plane mirrors
Convex lenses
Photovoltaic cells

3. What natural phenomenon occurs due to Total Internal Reflection in the atmosphere?

Sunset
Rainbow
Formation of clouds
Refraction

4. What happens when the angle of incidence is equal to the critical angle?

Light is absorbed
Light is scattered
Light passes undeviated
Light grazes along the surface

5. Which of the following is NOT a consequence of Total Internal Reflection?

Refraction of light
Formation of mirage
Sparkling of diamonds
Optical fibers transmission

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