Question

19. Question numbers 19 (e) to 19 (e) are based on the values of the absolute refractive
index of different material mediums.
Material medium Refractive index Material medium Refractive index
1.0003
Canada Balsam 1.53
lce
131
Water
133
Rock Salt
1.54
Alcohol
136
Kerosene
1.44
Carbon disulphide 1.63
1.46
Dense Flint Glass 1.65
Turpentine oil
1.47
Ruby
1.71
Benzene
1.50
Sapphire
1.77
Crown glass
1.52
Diamond
2.42
Fused quartz
19. (a) Which medium has highest optical density
(a) Air
(b) Diamond
(c) Benzene
(d) Rocksalt
19. (b) Find the medium having maximum speed of light.
(a) Diamond
(b) Rocksalt
(c) Water
(d) Air
19. (c) You are given kerosene, turpentine and water. In which of these does light travel faster.
19. (d) What happens to the ray of light when it travels from benzene to crown glass.
(a) Bends towards the nomal
(b) Bends away from the normal
(C) No refraction
(d) None of the above
19. (e) You are given a table of refractive indexes some materials. What is the speed of light of
of an object in kerosene. The speed of light in air is 3x10^8m/s.​

Answer 1

Answer:

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