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Sahay Sir > Question Answers > Uncategorised (JEE Advanced Physics by BM Sharma + GMP Solutions) > The angle of a prism is A. One of its refracting surfaces is silvered. Light rays falling at an angle of incidence 2A on the first surface returns back through the same path after suffering reflection at the silvered surface.The refractive index μ, of the prism is

The angle of a prism is A. One of its refracting surfaces is silvered. Light rays falling at an angle of incidence 2A on the first surface returns back through the same path after suffering reflection at the silvered surface.The refractive index μ, of the prism is

The light ray is incidence at angle of 60∘ on a prism of angle 45∘ . When the light ray falls on the other surface at 90∘ the refractive index of the material of prismμ and the angle of devaition δ are given by