Question

if refractive index for water and glass are 4/3 and 5/3 respectively and light is tending to go form glass. to water the crictical angle is....​

Answer 1

Answer:

.

hi it is easy

Given na 3/2

And nwa=4/3

Hence refractive index of glass with respect to water

is:

ngW=ng8/ nwa (3/2)/(4/3)=9/8

Now refractive index of water with respect to glass

is

nwg = nwa/ nga = (4/3)/(3/2) 8/9

I hope it helps you