A ray of light is incident at an angle of incidence - i - on one face of prism of angle A(assumed to be small)and emerges normally from the opposite faceIf therefractive index of the prism is P - the angle of incidenceis nearly equal to: [2012]

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A ray of light is incident at an angle of incidence - i - on one face of prism of angle A(assumed to be small)and emerges normally from the opposite faceIf therefractive index of the prism is P - the angle of incidenceis nearly equal to: [2012]