Question

The refractive index of glass with respect to air is 3/2 and the refractive index of water with respect to air is 4/3. The refractive index of glass with respect to water will be ?​

Answer 1

refractive index of glass with respect to air is 3/2

refractive index of water with respect to air is 4/3

therefore,

4/3 / 3/2

=> 4/3 X 2/3

= 8/9

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Answer 2

refractive index of glass wrt(with respect to) water is refractive index of glass divided by refractive index of water = 3/2/4/3 =9/8 is the required answer