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 speed of light in the medium?
A. `1.96xx10^(8)ms^(-1)`
B. `2.12xx10^(8)ms^(-1)`
C. `3.18xx10^(8)ms^(-1)`
D. `3.33xx10^(8)ms^(-1)`