Question

Mark the correct answer in the  question.

 If the refractive index of glass with respect to air is 3/2, what is the refractive index of air with respect to glass?

Options

•  \[\frac{1}{2}\]

• 3

• \[\frac{1}{3}\]

•  \[\frac{2}{3}\]

Answer 1

\[{}{a}{\mu}_g = \frac{\mu_g}{\mu_a} = \frac{3}{2}\]

where,

\[{}{a}{\mu}_g = \text{ Refractive index of glass w . r . t . air } \]

\[ \mu_g =\text{  Refractive index of glass } \]

\[ \mu_a = \text{ Refractive index of air } \]

Thus, 

\[{}{g}{\mu}_a = \frac{\mu_a}{\mu_g} = \frac{2}{3}\]

where, 

 

\[{}{g}{\mu}_a = \text{ Refractive index of air w . r . t . glass } \]