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The refractive index of glass is 1.5. What is meant by this statement ?

Answer»

Solution :When we SAY that refractive index of glass is 1.5, we mean that speed of light in glass `v = (C)/(n) = (3 xx 10^(8))/(1.5) ms^(-1) = 2 xx 10^(8) ms^(-1)`.


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