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Solution - Dispersion by a Prism

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Question

A student is observing a diagram showing the path of a ray of light passing through a glass prism. He would find that for all angles of incidence the ray of light bends:

(A) towards the normal while entering the prism and away from the normal while emerging from the prism

(B) away from the normal while entering the prism and towards the normal while emerging from the prism

(C) away from the normal while entering as well as while emerging from the prism

(D) towards the normal while entering as well as while emerging from the prism

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