A ray is incident at an angle of incidence i on one surface of a small angle prism (with angle of prism A ) and emerges normally from the opposite surface. If the refractive index of the material of the prism is μ , then the angle of incidence is nearly equal to:

Question

A ray is incident at an angle of incidence i on one surface of a small angle prism (with angle of prism A ) and emerges normally from the opposite surface. If the refractive index of the material of the prism is μ , then the angle of incidence is nearly equal to:, 2 A μ, μ A, μ A 2, A 2 μ

MARKS App · Accepted Answer

r 2 = 0 r 1 = A Apply Snell's law sin i = μ sin r 1 for small angle r 1 = A i = μ A

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