Question

The refractive index of water with respect to air is ${}_a{\mu }_w$ and of glass with respect to air is ${}_a{\mu }_g$. So, $\frac{{}_a{\mu }_g}{{}_a{\mu }_w}$ should express:

• A. refractive index of glass with respect to water
• B. refractive index of water with respect to glass
• C. refractive index of air
• D. none of these

Answer 1

The correct option is A refractive index of glass with respect to water

Refractive index of water with respect to air $=a{\mu }_w$
Refractive index of glass with respect to air $=a{\mu }_g$
The refractive index of glass with respect to water $w{\mu }_g=?$
$w{\mu }_g=\frac{a{\mu }_g}{a{\mu }_w}$