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

A ray is incident at an angle of incidence I on one surface of a prism

1.	A ray is incident at an angle of incidence I on one surface of a prism of small angle A and emerges normally from the opposite face. If the refractive index of the prism material is mu, then angle of incidence is nearly equal to:
Answer» `A/mu` `A/(2mu)` `mu A` `(MUA)/2` Answer :C

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

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