A diverging beam of rays from a point source S , making a divergent angle , alpha are incident on a glass slab (as shown in Fig. 2.82). The angle of incidence of the extreme rays on the two sides is the same. If thickness of the glass slab is t and refractive index n, then the angle of divergence of the emergent rays will be

A diverging beam of rays from a point source S , making a divergent an

1.	A diverging beam of rays from a point source S , making a divergent angle , alpha are incident on a glass slab (as shown in Fig. 2.82). The angle of incidence of the extreme rays on the two sides is the same. If thickness of the glass slab is t and refractive index n, then the angle of divergence of the emergent rays will be
Answer» ZERO `-alpha` `sin^(-1)(1)/(n)` `2SIN^(-1)(1)/(n)` ANSWER :B

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