Light is incident at point A on one of the faces of a diamond crystal $(μ = 2.0)$ . If the maximum allowed value of angle of incidence $θ$ so that light suffers total internal reflection at point B is $sin^{- 1} (n sin 1 5^{\circ})$ then find n .

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TestHub · Accepted Answer

Snell's law at A with the TIR condition at B (sin C = 1/2, C = 30 degrees) gives sin θ = 2 sin 1 5 ∘ . So n = 2. Answer: 2.00

Physics - Geometrical Optics Question with Solution | TestHub

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