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MHT CET Physics question

PhysicsRay Optics and Optical InstrumentsMHT CET

A ray of light passes through an equilateral glass prism in such a manner that the angle of incidence is equal to the angle of emergence and each of these angles is equal to 3/4 of the angle of the prism. The angle of deviation is

Answer: (D)

Solution

so and $δ = i + e - A = 90° - 60°

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Question ID VK-069347