STANDARD Physics Prisms MCQ Question
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
180° − 3A
180° − 2A
90° − A
Correct Answer
Detailed Explanation
The angle of minimum deviation for a prism with refracting angle A and refractive index μ = cot(A/2) is given by δ = 180° − 2A.
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