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MHT CET Physics question

PhysicsRay Optics and Optical InstrumentsMHT CET

Velocity of light in diamond is th that in air. Velocity of light in water is th that in air. The angle of incidence of a ray of light travelling from water to diamond (r = ) is

Answer: (A)

Solution

μ_d = 12/5, μ_w = 4/3; μ_w sin i = μ_d sin30° gives sin i = (12/5 × 1/2)/(4/3) = 9/10;

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Question ID VK-076944