Question

if the absolute refractive index of Glass and water are 3/2 and 4/3 respectively. what is the refractive index of Glass with respect to water?​

Answer 1

Refractive index = c(velocity of light in vacuum)/ v( velocity of light in a medium)

Thus, 4/3= c/v1(velocity of light in water) and 3/2=c/v2(velocity of light in glass)

Dividing , we get v2/v1=8/9 or v1/v2=9/8 which is the required ratio.

Hope you got the answer.