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Plot a graph to show the variation of the angle of deviation as a function of angle of incidence for light rays passing through a prism. Write the relation for the refractive index of the prism in terms of the angle of minimum deviation and the angle of the prism. |
Answer» Solution :A graph showing the variation of the angle of DEVIATION (8) as a function of angle of incidence (`delta`) for light rays passing through a prism is SHOWN in Fig. 9.45. The relation for the refractive INDEX (n) of the prism is  `n=(SIN(A+ D_(m))/2)/(sin(A/2))` Here, A = angle of prism and `D_m` = angle of minimum deviation. |
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