In figure, a ray of light PQ is incident...

In figure, a ray of light PQ is incident normally on the hypotenuse of an isosceles right angled prism ABC. (a) complete the path of the ray PQ till it emerges from the prism. Mark in the diagram the angle wherever necessary. (b) what is the angle of deviation of the ray PQ ?
(c) Name a device in which this action is used.

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The correct Answer is:

(b) `180^(@),` (c) Binocular

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