Q 2489380217.     A ray of light is incident at an angle `i` on a
glass slab of refractive index `mu`. The angle
between reflected and refracted light is `90^(o)`

Then, the relationship between `i` and `mu` is

WBJEE 2015
A

`i = tan^(-1) (1/mu)`

B

`tan i = mu`

C

`sin i = mu`

D

`cos i = mu`

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