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A ray of laser of a wavelength 630 nm is...

A ray of laser of a wavelength 630 nm is incident at an angle of `30^(@)` at the diamond-air interface. It is going from diamond to air. The refractive index of diamond is 2.42 and that of air is 1. Choose the correct option

A

Angle of refraction is `53.4^(@)`

B

Angle of refraction is `24.41^(@)`

C

Angle of refraction is `30^(@)`

D

Refraction is not possible

Text Solution

Verified by Experts

The correct Answer is:
D

Critical angle ` C = sin ^(-1) ((1)/(2.42)) = 24 . 4^(@)`
Given Incident angle `30^(@) gt C `
So there is Total internal reflection at interface ray will not get refracted
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