SSC
PHYSICS
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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You are given three media A, B and C of refractive index 1.33, 1.65 and 1.46. The medium in which the light will travel fastest is
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A
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B
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C
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equal in all three media
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Explanation:
Detailed explanation-1: -Light travel faster in medium A. Explanation: Given refractive indices of three media A, B, C as 1.33, 1.65 and 1.46. Refractive index, n, is the ratio of speed of light in vacuum(c) to the speed of light in a medium(v).
Detailed explanation-2: -The refractive index of medium A is 1.5 and that of medium B is 1.33. If the speed of light in air is 3×108 m/s, what is the speed of light in medium A and B respectively?
Detailed explanation-3: -n = c/v = (3.00 x 108 m/s)/(2.76 x 108 m/s) = 1.09.
There is 1 question to complete.