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The angle of prism is 60°.When light is incident at an angle of 60° on the prism, angle of emergence is 40°. The angle of incidence I for which the light ray will deviate the least is such thatA) I60°

The angle of prism is 60°.When light is incident at an angle of 60° on the prism, angle of emergence is 40°. The angle of incidence I for which the light ray will deviate the least is such thatA) I60°

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