Question

refractive index of water and glass wrt air is 4/3 and 3/2 respectively . find refractive index of glass wrt water and water wrt glass
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Answer 1

Explanation:

Refractive index of water wrt air= 4/3

Refractive index of glass wrt to air = 3/2

Refractive index of air wrt water = 1/(refractive index of water wrt air) = 1/(4/3) = 3/4

Refractive index of glass wrt water = (Refractive index of glass wrt air) × (refractive index of air wrt water) = (3/2) × (3/4) = 9/8.