Light enters from air into diamond which has a refractive index of 2.42. Calculate the speed of light in diamond if the speed of light in air is 3 x 10^8 m/s.
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The speed of light in air is 3×108m/s. Solution : Here, n=2.42,v=?,c=3×108m/s As n=cv,v=cn=3×1082.42=1.24×108m/s.
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