Question

the refractive indices of water and glass are 1.35 and 1.50 respectively, if the light ray is passing from glass to water then what will be the refractive index of water with respect to glass.​

Answer 1

Given:

The refractive indices of water and glass are 1.35 and 1.50 respectively.

To find:

Refractive index of water with respect to glass?

Calculation:

So, we can say:

$_{a}\mu_{g} = 1.5 \: and \: _{a}\mu_{w} = 1.35$

Now, when we want to find refractive index of water w.r.t glass, we will write as :

$\therefore \: _{g}\mu_{w} = \dfrac{_{a}\mu_{w}}{_{a}\mu_{g}}$

$\implies \: _{g}\mu_{w} = \dfrac{1.35}{1.5}$

$\implies \: _{g}\mu_{w} = 0.9$

Refractive index of water w.r.t glass is 0.9 .