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A ray of light falls on a transparent sp...

A ray of light falls on a transparent sphere with centre at C as shown in figure. The ray emerges from the sphere parallel to line AB. The refractive index of the sphere is

A

`2 sin (theta//2)`

B

`4 sin (theta//2)`

C

`2 cos (theta//2)`

D

`4 cos (theta//2)`

Text Solution

Verified by Experts

The correct Answer is:
C
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