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MHT CET Physics question

PhysicsRay Optics and Optical InstrumentsMHT CET

A ray of light is incident at an angle on one face of a thin angled prism. The ray emerges normally from the other face. Refractive index of the glass prism is and angle of prism is . The value of is [MHTCET 2020]

Answer: (A)

Solution

Normal emergence gives so , and Snell's law becomes for

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Question ID VK-069404