Physics - Geometrical Optics Question with Solution | TestHub

Given, ${\mu }_{\text{oil }}=2$ and ${\mu }_{\text{glass }}=3/2$ velocity of light in oil is given by $\begin{array}{rl}& {\mathrm{V}}_{\text{oil }}=\frac{\text{ Velocity of light (c) }}{{\mu }_{\text{oil }}}=\frac{\mathrm{c}}{{\mu }_{\text{oil }}}\\ \text{ Similarly, }{\mathrm{V}}_{\text{glass }}& =\frac{\mathrm{c}}{{\mu }_{\text{glass }}}\\ \therefore & \frac{V_{\text{glass }}}{{\mathrm{V}}_{\text{oil }}}=\frac{\mathrm{c}/{\mu }_{\text{glass }}}{\mathrm{c}/{\mu }_{\text{oil }}}=\frac{{\mu }_{\text{oil }}}{{\mu }_{\text{glass }}}=\frac{2}{3/2}=\frac{4}{3}\end{array}$