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The refracting angle of a prism is A and...

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

A

`180^(@) - 3A`

B

`180^(@) + 2A`

C

`90^(@) - A`

D

`180^(@) - 2A`

Text Solution

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The correct Answer is:
D
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