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MHT CET Physics question

PhysicsRay Optics and Optical InstrumentsMHT CET

A ray of light is incident at an angle 'i' on one face of prism of small angle 'A' and emerges normally from the other surface. '' is the refractive index of the material of the prism. The angle of incidence is [MHT-CET 2006]

Answer: (A)

Solution

Normal emergence gives ; for small angles, so

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Question ID VK-069551