JEE PHYSICS MCQ: RAY OPTICS

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When white light passes through a glass prism, one gets spectrum on the other side of the prism. In the emergent beam, the ray which is deviating least is
or
Deviation by a prism is lowest for

View answer and explanation

Correct option: C

Red ray

Option C (Red ray) is correct because red light has the longest wavelength and thus the least refractive index and deviation when passing through a prism.

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