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A beam of light is partially reflected a...

A beam of light is partially reflected and partially refracted from a surface. The angle between reflected and refracted light ray is `90^(@)`. If the angle of refraction is `30^(@)`, the angle of incidence is

A

`50^@`

B

`60^@`

C

`78^@`

D

`75^@`

Text Solution

Verified by Experts

The correct Answer is:
B
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