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Question

A light ray is incident perpendicular to one face of a 900 prism and is totally intemally reflected at the glass-air interface. If the angle of reflection is 450, we conclude that the refractive index n:

41618_507090f672fb4590aee67091db874ac4.png

A
n<12
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B
n>2
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C
n>12
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D
n<2
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