1.

A ray of light is inclined to one face of the prism at an angle of 500. If the angle of prism is 700 and the ray is deviated through an angle of 460 then the angle which the emergent ray makes with the second face of the prism is

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A ray of light is inclined to one face of the prism at an angle of 500. If the angle of prism is 700 and the ray is deviated through an angle of 460 then the angle which the emergent ray makes with the second face of the prism is



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