Question

refractive index of water with respect of air 1.33, what is the refractive index of air with respect to water

Answer 1

Hi..

Refractive Index = 1/1.33
0.75.

Hope this helps u!!

Answer 2

Refractive index of air =1

So

the refractive index of air w.r.t. water

=1/(4/3)

=3/4

=0.75