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If a ray of light in a denser medium str...

If a ray of light in a denser medium strikes a rarer medium at an angle of incidence i, the angles of reflection and refraction are respectively, r and r' If the reflected and refraction rays are at right angles to each other, the critical angle for the given pair of media is

A

`sin^(-1)(tanr')`

B

`sin^(-1)(tanr)`

C

`tan^(-1)(sini)`

D

`cot^(-1)(tani)`

Text Solution

Verified by Experts

The correct Answer is:
B
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