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[" 11.A ray of light is incident on the ...

[" 11.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? "],[[" (a) "1.96times10^(8)m/s," (b) "2.12times10^(8)m/s],[" (c) "3.18times10^(8)m/s," (d) "3.33times10^(8)m/s]]

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