Question

If the refractive index of a glass is 1.5 and that of water is 4/3, find the refractive index of water with respect to glass.

Answer 1

Refractive Index of glass, rg = 1.5

Refractive index of water, rw = 4/3

Refractive index of water with respect to glass = rg/rw

= 1.5/(4/3) = 1.5 * 3 / 4 = 4.5 / 4 = 1.125