A ray of monochromatic light is incident on the plane surface of separation between two media x and y with angle of incidence `i` in the medium x and angle of refraction r in the medium y. The graph shows the relation between sin `i` and sin `r`.

Options

A. the speed of light in the medium `y` is `(3)^(1//2)` time than in medium `x` .
B. the speed of light in the medium `y` is `(1//3)^(1//2)` time than in medium `x` .
C. the total intenal reflection can take place when the incidence is in `x`.
D. the total intenal reflection can take place when the incidence is in `y`.

Answer

b,d

Explanation

N//a