52.At what angle will a Ray of light incident on one face of an equila – InterviewSolution

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1.	52.At what angle will a Ray of light incident on one face of an equilateral prism so that the emergent ray grazes the second surface of the prism(u=2) 1) 30 degree 2) 90 degree 3) 45 degree 4) 60 degree
Answer» 52.At what angle will a Ray of light incident on one face of an equilateral prism so that the emergent ray grazes the second surface of the prism(u=2) 1) 30 degree 2) 90 degree 3) 45 degree 4) 60 degree

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