not clear
A ray is incident at an angle of incidence i on one surface of a prism of small angle A and emerges normally from opposite surface. If the refractive index of the material of prism is μ, the angle incidence of i is nearly equal to
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5 Answers
Rohan Ghosh
·2009-04-24 02:20:19
we have
sini=μsinA
i≈μA
as it emerges normally from the figure you will get the angle of refraction after fiurst surface = A