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A ray of light in incident on a glass pl...

A ray of light in incident on a glass plate at an angle of `60^@`. What is the refractive index of glass if the reflected and refracted rays are perpendicular to each other?

A

(a) `tan60^@`

B

(b) `cot 60^@`

C

(c) `sin 60^@`

D

(d) `cos60^@`

Text Solution

Verified by Experts

The correct Answer is:
A
`60^@` is polarising angle. Use Brewster's law
`mu=tani_p=tan60^@`.
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