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Dispersion of White Light by Glass Prism

A beam of lig...

Question

A beam of light composed of red and green rays is incident obliquely at a point on the face of a rectangular glass slab. When coming out on the opposite parallel face, the red and green rays emerge from :-

A

Two points propagating in two different parallel directions

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B

One point propagating in two different directions through slab

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C

One point propagating in the same direction through slab

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D

Two points propagating in two different non parallel directions

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Solution

The correct option is A Two points propagating in two different parallel directions
Red and green rays emerge from two points, propagating in two different parallel directions.

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