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A ray of light travelling from air to gl...

A ray of light travelling from air to glass is deviated by an angle of ` 24^(@)`. If the reflected and refracted rays are at right angles then the angles of incidence is

A

`48^(@)`

B

`57^(@)`

C

`28^(@)`

D

`24^(@)`

Text Solution

Verified by Experts

The correct Answer is:
B
`i+r=90^(@) and i-r=24^(@)`
`:. 2i=90^(@)+24^(@)=114^(@) " " :. i=57^(@)`
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