A ray of light is incident on the surface of separation of a medium at an angle `45^(@)` and is refracted in the medium at an angle `30^(@)`. What will be the velocity of light in the medium?

Options

A. `1.96 xx 10^8 m/s`
B. `2.12 xx 10^8 m/s`
C. `3.18 xx 10^8 m/s`
D. `3.33 xx 10^8 m/s`

Answer

B