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A transparent solid cylindrical rod has ...

A transparent solid cylindrical rod has a refractive index of `2/sqrt(3)`. If is surrounded by air. A light ray is incident at the mid-poin of one end of the rod as shown in the figure.
The incident angle `phi` for which the light ray grazes along the wall of the rod is

A

`sin^(-1)((1)/(2))`

B

`sin^(-1)((sqrt(3))/(2))`

C

`sin^(-1)sqrt(2)`

D

`sin^(-1)((1)/(sqrt(3)))`

Text Solution

Verified by Experts

The correct Answer is:
C
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