Question

If refractive index of water is 4/3 and that of glass is 3/2. Find the refractive index of glass w.r.t. water.

Answer 1

Answer:

ng=c/vg

nw=c/vw

Refractive index of glass w.r.t. water   ngw =vw/vg=ng/nw

= $\frac{3/2}{4/3}$

⟹ ngw  =  9/8