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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
\[\frac{1}{3}\]
\[\frac{2}{3}\]
MCQ
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Solution
\[{}{a}{\mu}_g = \frac{\mu_g}{\mu_a} = \frac{3}{2}\]
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,
\[{}{g}{\mu}_a = \text{ Refractive index of air w . r . t . glass } \]
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