Reflection and Refraction of lights
1. When light passes from air into water, it undergoes:
a) Reflection
b) Refraction
c) Diffraction
d) Dispersion
Answer: b) Refraction
2. The bending of light as it passes from one medium to another is due to a change in its:
a) Wavelength
b) Speed
c) Frequency
d) Amplitude
Answer: b) Speed
3. The angle of incidence is equal to the angle of _________.
a) Reflection
b) Refraction
c) Diffraction
d) Dispersion
Answer: a) Reflection
4. When light is incident on a smooth surface, the reflected rays are:
a) Parallel to each other
b) Diverging
c) Converging
d) Random
Answer: a) Parallel to each other
5. The phenomenon of bending of light around obstacles or edges is called:
a) Reflection
b) Refraction
c) Diffraction
d) Dispersion
Answer: c) Diffraction
6. The change in direction of light when it passes from a denser medium to a rarer medium is called:
a) Reflection
b) Refraction
c) Diffraction
d) Dispersion
Answer: b) Refraction
7. The image formed by a plane mirror is:
a) Real and inverted
b) Virtual and inverted
c) Real and upright
d) Virtual and upright
Answer: d) Virtual and upright
8. The law of reflection states that the angle of incidence is equal to the angle of _________.
a) Reflection
b) Refraction
c) Diffraction
d) Dispersion
Answer: a) Reflection
9. The change in direction of light when it passes from a rarer medium to a denser medium is called:
a) Reflection
b) Refraction
c) Diffraction
d) Dispersion
Answer: b) Refraction
10. The angle between the incident ray and the normal is called the angle of _________.
a) Incidence
b) Reflection
c) Refraction
d) Dispersion
Answer: a) Incidence
11. The point at which the incident ray strikes a surface is called the _________ point.
a) Reflection
b) Refraction
c) Incidence
d) Focal
Answer: c) Incidence
12. The bouncing back of light from a surface is called:
a) Reflection
b) Refraction
c) Diffraction
d) Dispersion
Answer: a) Reflection
13. The change in direction of light when it passes through a prism is called:
a) Reflection
b) Refraction
c) Diffraction
d) Dispersion
Answer: b) Refraction
14. The angle between the refracted ray and the normal is called the angle of _________.
a) Incidence
b) Reflection
c) Refraction
d) Dispersion
Answer: c) Refraction
15. The phenomenon of splitting of white light into its component colors is called:
a) Reflection
b) Refraction
c) Diffraction
d) Dispersion
Answer: d) Dispersion
16. When light passes through a convex lens, it _________.
a) Converges
b) Diverges
c) Does not change direction
d) Becomes polarized
Answer: a) Converges
17. The image formed by a convex lens is:
a) Real and inverted
b) Virtual and inverted
c) Real and upright
d) Virtual and upright
Answer: a) Real and inverted
18. The point where light rays converge or appear to diverge after passing through a lens is called the _________ point.
a) Focal
b) Reflection
c) Refraction
d) Incidence
Answer: a) Focal
19. The bending of light as it passes through a prism is due to its:
a) Reflection
b) Refraction
c) Diffraction
d) Dispersion
Answer: b) Refraction
20. The angle between the incident ray and the refracted ray is called the angle of _________.
a) Incidence
b) Reflection
c) Refraction
d) Dispersion
Answer: d) Dispersion
21. The change in direction of light when it passes through a concave lens is called:
a) Reflection
b) Refraction
c) Diffraction
d) Dispersion
Answer: b) Refraction
22. The image formed by a concave lens is:
a) Real and inverted
b) Virtual and inverted
c) Real and upright
d) Virtual and upright
Answer: d) Virtual and upright
23. The point where light rays diverge after passing through a lens is called the _________ point.
a) Focal
b) Reflection
c) Refraction
d) Incidence
Answer: a) Focal
24. The bending of light as it passes through a medium with varying density is called:
a) Reflection
b) Refraction
c) Diffraction
d) Dispersion
Answer: b) Refraction
25. The angle between the incident ray and the reflected ray is called the angle of _________.
a) Incidence
b) Reflection
c) Refraction
d) Dispersion
Answer: b) Reflection
26. The point where the incident ray intersects the reflecting surface is called the _________ point.
a) Reflection
b) Refraction
c) Incidence
d) Focal
Answer: c) Incidence
27. The image formed by a plane mirror is always:
a) Real and inverted
b) Virtual and inverted
c) Real and upright
d) Virtual and upright
Answer: b) Virtual and inverted
28. The angle of refraction is determined by the _________ of the two media.
a) Speed
b) Wavelength
c) Frequency
d) Density
Answer: d) Density
29. When light passes from a denser medium to a rarer medium, it _________.
a) Converges
b) Diverges
c) Does not change direction
d) Becomes polarized
Answer: b) Diverges
30. The speed of light is fastest in:
a) Air
b) Glass
c) Water
d) Vacuum
Answer: d) Vacuum
31. The angle between the incident ray and the refracted ray is called the angle of _________.
a) Incidence
b) Reflection
c) Refraction
d) Dispersion
Answer: c)
Refraction
32. The change in direction of light when it passes from a denser medium to a rarer medium is called:
a) Reflection
b) Refraction
c) Diffraction
d) Dispersion
Answer: b) Refraction
33. The angle between the refracted ray and the normal is called the angle of _________.
a) Incidence
b) Reflection
c) Refraction
d) Dispersion
Answer: c) Refraction
34. The angle between the incident ray and the normal is called the angle of _________.
a) Incidence
b) Reflection
c) Refraction
d) Dispersion
Answer: a) Incidence
35. The phenomenon of splitting of white light into its component colors is called:
a) Reflection
b) Refraction
c) Diffraction
d) Dispersion
Answer: d) Dispersion
36. When light passes through a convex lens, it _________.
a) Converges
b) Diverges
c) Does not change direction
d) Becomes polarized
Answer: a) Converges
37. The image formed by a convex lens is:
a) Real and inverted
b) Virtual and inverted
c) Real and upright
d) Virtual and upright
Answer: a) Real and inverted
38. The point where light rays converge or appear to diverge after passing through a lens is called the _________ point.
a) Focal
b) Reflection
c) Refraction
d) Incidence
Answer: a) Focal
39. The bending of light as it passes through a prism is due to its:
a) Reflection
b) Refraction
c) Diffraction
d) Dispersion
Answer: b) Refraction
40. The angle between the incident ray and the refracted ray is called the angle of _________.
a) Incidence
b) Reflection
c) Refraction
d) Dispersion
Answer: c) Refraction
41. The change in direction of light when it passes through a concave lens is called:
a) Reflection
b) Refraction
c) Diffraction
d) Dispersion
Answer: b) Refraction
42. The image formed by a concave lens is:
a) Real and inverted
b) Virtual and inverted
c) Real and upright
d) Virtual and upright
Answer: d) Virtual and upright
43. The point where light rays diverge after passing through a lens is called the _________ point.
a) Focal
b) Reflection
c) Refraction
d) Incidence
Answer: a) Focal
44. The bending of light as it passes through a medium with varying density is called:
a) Reflection
b) Refraction
c) Diffraction
d) Dispersion
Answer: b) Refraction
45. The angle between the incident ray and the reflected ray is called the angle of _________.
a) Incidence
b) Reflection
c) Refraction
d) Dispersion
Answer: b) Reflection
46. The point where the incident ray intersects the reflecting surface is called the _________ point.
a) Reflection
b) Refraction
c) Incidence
d) Focal
Answer: c) Incidence
47. The image formed
by a plane mirror is always:
a) Real and inverted
b) Virtual and inverted
c) Real and upright
d) Virtual and upright
Answer: b) Virtual and inverted
48. The angle of refraction is determined by the _________ of the two media.
a) Speed
b) Wavelength
c) Frequency
d) Density
Answer: d) Density
49. When light passes from a denser medium to a rarer medium, it _________.
a) Converges
b) Diverges
c) Does not change direction
d) Becomes polarized
Answer: b) Diverges
50. The speed of light is fastest in:
a) Air
b) Glass
c) Water
d) Vacuum
Answer: d) Vacuum
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