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A ray of light is incident on the surface of seperation 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?
A. `1.96xx10^(8)` m/s
B. `2.12xx10^(8)` m/s
C. `2.65xx10^(8)` m/s
D. `1.24xx10^(8)` m/s

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