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A ray of light is incident on the surfac...

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

A

`1.96 xx 10^8 m//s`

B

`2.12 xx 10^8 m//s`

C

`3.86 xx 10^8 m//s`

D

`3.33 xx 18^8 m//s`

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