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A ray of light passes from air into a l...

A ray of light passes from air into a liquid. The glancing angle is ` 30^(@)` . The deviation produced in the ray of light is `15^(@)`. The refractive index of liquid is :

A

`1.224`

B

`1.268`

C

`1.339`

D

`1.52`

Text Solution

Verified by Experts

The correct Answer is:
A

`r =60^(@)-15^(@)=45^(@)`
`""_(a) n_(L)=( sin 60^@)/(sin 45^(@))=(1.732)/(1.414)=1.224`
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