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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

Less than 1.41

B

Equal to 1.41

C

Greater than 1.41

D

None of the above

Text Solution

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The correct Answer is:
c
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