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25. If a light ray incident normally on one of the faces of a Prism of refractive index 2 and the emergent ray just graces the second face of the prism, then the angle of deviation is?

Answer» 25. If a light ray incident normally on one of the faces of a Prism of refractive index 2 and the emergent ray just graces the second face of the prism, then the angle of deviation is?


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