A ray of light entering from air to glas (mu=1.5) is partly reflected and partly refracted. lf the reflected and refracted rays are at right angles to each other, the angle of refraction is

A ray of light entering from air to glas (mu=1.5) is partly reflected

1.	A ray of light entering from air to glas (mu=1.5) is partly reflected and partly refracted. lf the reflected and refracted rays are at right angles to each other, the angle of refraction is
Answer» `SIN^(-1)(sqrt(2/13))` `sin^(-1)((sqrt(2))/13)` `sin^(-1)(2/(sqrt(13)))` `sin^(-1)(3/(sqrt(13)))` ANSWER :C

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A ray of light entering from air to glas (mu=1.5) is partly reflected and partly refracted. lf the reflected and refracted rays are at right angles to each other, the angle of refraction is

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