The refracting angle of prism is A and refractive index of material of prism is \[\cot \frac{A}{2}\]. The angle of minimum deviation is [CPMT 1992]

The refracting angle of prism is A and refractive index of material of

1.	The refracting angle of prism is A and refractive index of material of prism is \[\cot \frac{A}{2}\]. The angle of minimum deviation is [CPMT 1992]
A.	180°? 3A
B.	180° + 2A
C.
D.	180° ? 2A
Answer» E.

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The refracting angle of prism is A and refractive index of material of prism is \[\cot \frac{A}{2}\]. The angle of minimum deviation is [CPMT 1992]

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