MCQ- 9 Class 10 Light Quiz: Total Internal Reflection in Prisms

Class 10 - Light Quiz

Total Internal Reflection in Prisms

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1. What is the primary purpose of a 45°-90°-45° prism in Total Internal Reflection?

To reflect light without deviation To deviate light by 90° or 180° To refract light To disperse light

2. What happens when light strikes a 60°-60°-60° equilateral prism at a certain angle?

Light passes undeviated Light gets absorbed Total internal reflection occurs Light gets refracted partially

3. In a 30°-60°-90° prism, what is the angle of deviation when total internal reflection occurs?

30° 45° 90° 60°

4. Why is a Total Internal Reflecting Prism used instead of a Plane Mirror?

To avoid light loss due to absorption To increase reflection efficiency To reduce light intensity To bend light by 45°

5. Which prism is commonly used to erect an inverted image without deviation?

45°-90°-45° prism 30°-60°-90° prism 60°-60°-60° prism Glass slab

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