Question

Q. 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. What will be the refractive index of glass with respect to water?​

Answer 1

Answer: THE ANSWER IS 9/8

Explanation:

n of glass/n of air =3/2-------(1)

n of water/n of air=4/3-------(2)

(1)/(2)=n of glass/n of water=9/8

Answer 2

given,

Refractive index of water wrt air = 4/3

Refractive index of glass wrt air = 3/2

Refractive index of glass wrt water ( glass n water) = Ref. index of water/ Ref. index of glass

= 4/3 divided by 3/2

= 4/3 x 2/3

= 8/9