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If refractive indices of glass and water with respect to air are `3//2` and `4//3` respectively, what is the refractive index of glass with respect to water ?

Answer» Here, `._(g)mu^(a) = (3)/(2)` and `._(w)mu^(a) = (4)/(3)`
`._(g)mu^(w) = (._gmu^(a))/(._wmu^a) = (3//2)/(4//3) = (9)/(8)`.


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