Question

71. A ray of light strikes a glass plate at angle of 60°. If the reflected and refracted rays are perpendicular to each other, the index of
refraction of glass is
(M.P. 1994; C.B.S.E. 1991)
(1) 13/2
(2) 3/2
(3) ſ3
(4) 0.5​

Answer 1

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