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 sphere ?

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 sphere ?
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 sphere ?

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