The refracting angle of a prism is A, an...

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

`180^(@) - 2A`

`90^(@) - A`

`180^(@) + 2A`

`180^(@) - 3A`

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MOTION-RAY OPTICS-Exercise-3

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