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A light ray is incident perpendicularly ...

A light ray is incident perpendicularly to one face of a `90^circ` prism and is totally internally reflected at the glass-air interface. If the angle of reflection is `45^circ`, we conclude that the refractive index n

A

`n lt (1)/(sqrt2)`

B

`n gt (1)/(sqrt2)`

C

`n lt sqrt2`

D

`n gt sqrt2`

Text Solution

Verified by Experts

The correct Answer is:
D
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