A ray of light is incident on a glass sphere of refractive index 3/2. What should be the angle of incidence so that the ray which enters the sphere does not come out of the spher?

A ray of light is incident on a glass sphere of refractive index 3/2.

1.	A ray of light is incident on a glass sphere of refractive index 3/2. What should be the angle of incidence so that the ray which enters the sphere does not come out of the spher?
Answer» `tan^(-1)(2//3)` `sin^(-1)(2//3)` `90^(@)` `COS^(-1)(1//3)` ANSWER :C

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A ray of light is incident on a glass sphere of refractive index 3/2. What should be the angle of incidence so that the ray which enters the sphere does not come out of the spher?

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