Question Paper
Class / Subject: Class 10 (SSC) · Science and Technology (विज्ञान आणि तंत्रज्ञान)
Chapter: Chapter 6 — Chapter 6: Refraction of Light
Time Allowed: 32 minutes
Max Marks: 16
1. What is refraction? [1]
(A) Bending of light between media
(B) Light travelling in a straight line always
(C) Reflection of light
(D) Absorption of light
2. Why does refraction occur? [1]
(A) Light changes speed between media
(B) Light never changes speed
(C) Light always travels the same speed
(D) No specific reason
3. What does Snell's law state? [1]
(A) sin(i)/sin(r) = refractive index
(B) sin(i) = sin(r) always
(C) i = r always
(D) No relationship exists
4. What does refractive index indicate? [1]
(A) How much light bends and slows
(B) Only the colour of light
(C) Only the light's brightness
(D) Nothing specific
5. What causes a pencil to look bent in water? [1]
(A) Refraction of light
(B) Reflection of light
(C) Absorption of light
(D) No specific cause
6. What forms the basis of how lenses work? [1]
(A) Refraction
(B) Only reflection
(C) Only absorption
(D) Nothing specific
7. What happens to light speed entering a denser medium? [1]
(A) It slows down
(B) It speeds up
(C) It stays the same
(D) It stops completely
8. Why learn about refraction? [1]
(A) To understand light bending and optical phenomena
(B) No reason
(C) It's not useful
(D) Only for tests
9. What is refraction? [1]
(A) Bending of light between media
(B) Light travelling in a straight line always
(C) Reflection of light
(D) Absorption of light
10. Why does refraction occur? [1]
(A) Light changes speed between media
(B) Light never changes speed
(C) Light always travels the same speed
(D) No specific reason
11. What does Snell's law state? [1]
(A) sin(i)/sin(r) = refractive index
(B) sin(i) = sin(r) always
(C) i = r always
(D) No relationship exists
12. What does refractive index indicate? [1]
(A) How much light bends and slows
(B) Only the colour of light
(C) Only the light's brightness
(D) Nothing specific
13. What causes a pencil to look bent in water? [1]
(A) Refraction of light
(B) Reflection of light
(C) Absorption of light
(D) No specific cause
14. What forms the basis of how lenses work? [1]
(A) Refraction
(B) Only reflection
(C) Only absorption
(D) Nothing specific
15. What happens to light speed entering a denser medium? [1]
(A) It slows down
(B) It speeds up
(C) It stays the same
(D) It stops completely
16. Why learn about refraction? [1]
(A) To understand light bending and optical phenomena
(B) No reason
(C) It's not useful
(D) Only for tests