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Question
Physics
Why is refractive index in a transparent medium greater than one?
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Q. Why is refractive index in a transparent medium greater than one?
A
Because the speed of light in vacuum is always less than speed in a transparent medium
B
Because the speed of light in vacuum is always greater than the speed in a transparent medium
C
Frequency of wave changes when it crosses medium
D
None of the above.
Solution:
$\mu=\frac{c}{v}$