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:
(a) 1.525
(b) 1.225
(c) 1.425
(d) 1.125

Answer 1

Refracive index of glass with respect to water=Refractive index of water with respect to air/refractive index of glass with respect to air

4/3 divided by 3/2

➡️4/2=2/1=1.525

Answer 2

refractive index of glass with respect to water

=refractive index of glass/refractive index of water

=(3/2)/(4/3)

=9/8

=1.12