Question

If the refractive index of glass with respect to air is 3

2, then the refractive

index of air with respect to glass is _____________ .

(a) 4

8 (b) 3 (c) 1

3 (d) 12​

Answer 1

Answer:

$\frac{2}{3}$

Explanation:

Let,

Refractive index of air be n1

and the refractive index of glass be n2.

Given:

$\frac{n1}{n2} = \frac{3}{2}$

Thus,

$\frac{n2}{n1} = \frac{2}{3}$

Just inverse them.

And you'll get the answer.