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The refiracting angle of a prism is A an...

The refiracting angle of a prism is A and the refractive index of the material of the prism is `cot(A/2)`. The angle of minimum deviation of the prism is .

A

`pi + 2A`

B

`pi - 2A`

C

`pi/2 + A`

D

`pi/2 - A`

Text Solution

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The correct Answer is:
B
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