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A ray of light travels from air to glass...

A ray of light travels from air to glass. It is found that the angle of refraction is half the angle of incidence. The the angle of incidence is given by

A

`2 cos ^(-1) (mu //2)`

B

`cos ^(-1) (mu //2)`

C

`2 cos^(-1) (mu)`

D

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

Text Solution

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The correct Answer is:
A
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