The refractive indices of water and galss w.r.t. air are 1.3 and 1.5 respectively. What will be the refractive index of galss with respect to water ?

Options

A. `(1.3)/(1.5)`
B. `(1.5)/(1.3)`
C. `(1.5)/(2.6)`
D. `(2.6)/(1.5)`

Answer

B

Explanation

`w^(n)g=(a^n g)/(a^n w)=(1.5 )/(1.3 )`