NEET Physics Ray Optics and Optical Instruments Questions Solved

A ray of light is incident on the hypotenuse of a right-angled prism after travelling parallel to the base inside the prism. If μ is the refractive index of the material of the prism, the maximum value of the base angle for which light is totally reflected from the hypotenuse is 

(a) sin-11μ                             (b) tan-11μ

(c) sin-1μ-1μ                         (d) cos-11μ

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