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A light ray enters from medium A to medi...

A light ray enters from medium A to medium B as shown in Figure. The refractive index of medium A relative to B will be

A

greater than unity

B

less than unity

C

equal to unity

D

zero

Text Solution

Verified by Experts

The correct Answer is:
A
Since light rays in the medium B goes towards normal. So it has greater refractive index and lesser velocity of light w.r.t. medium A. So refractive index of medium B w.r.t. medium A is greater than unity.
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