Jatinder Singh Solutions for Chapter: Refraction at Plane Surfaces, Exercise 1: Expected Questions

The speed of a light in water and in glass is $2.25\times {18}^8 \mathrm{m} {\mathrm{s}}^{-1}$ and  $2.0\times {10}^8 \mathrm{m} {\mathrm{s}}^{-1}$ respectively. What is the refractive index of water with respect to glass? (Write upto three decimal places)

Calculate the time taken by a light ray when it passes through a glass sheet of thickness $2 \mathrm{mm}$ and $\mathrm{\mu }=\raisebox{1ex}{$3$}\!\left/ \!\raisebox{-1ex}{$2$}\right.$ and $\mathrm{c}=3.0\times {10}^8 \mathrm{m} {\mathrm{s}}^{-1}$.

The speed of light in diamond is $125000 \mathrm{km} {\mathrm{s}}^{-1}$. What is its refractive index?

A monochromatic ray of light strikes the surface of a transparent medium at an angle of incidence ${60}^{\mathrm{o}}$ and gets refracted into the medium at an angle of refraction ${45}^{\mathrm{o}}$. What is the refractive index of the medium? (Take $\sin 60°=\frac{\sqrt{3}}{2}, \sin 45°=\frac{1}{\sqrt{2}}$)

The refractive index of water with respect to air is $\raisebox{1ex}{$4$}\!\left/ \!\raisebox{-1ex}{$3$}\right.$. What is the refractive index of air with respect to water?

A ray of light incident at an angle ${48}^{\mathrm{o}}$ on a prism of refracting angle ${60}^{\mathrm{o}}$ suffers minimum deviation. Calculate the angle of minimum deviation?

What should be the angle of incidence for a ray of light which suffers a minimum deviation of ${36}^{\mathrm{o}}$ through an equilateral prism?

A water pond appears to be $2.7 \mathrm{m}$ deep. If the refractive index of water is  $\raisebox{1ex}{$4$}\!\left/ \!\raisebox{-1ex}{$3$}\right.$, find the actual depth of pound?