Question

Refractive index of water with respect to air is 4/3 and glass is 3/2.Find refractive index of glass with respect to water.

Answer 1

nga = a / g nwa= a / w

3 / 2 = a / g 4 / 3 = a / w

g = 2 / 3 a w = 3 / 4 a

NOW , ngw = 3/4 a divided by 2/3 a

ngw = 9 / 8