Lakhmir Singh and Manjit Kaur Solutions for Chapter: Refraction of Light, Exercise 9: Multiple Choice Questions (MCQs)

The refractive index of glass with respect to air is $\frac{3}{2}$. The refractive index of air with respect to glass will be:

The refractive indices of four media $A, B, C$ and $D$ are $1.44, 1.52, 1.65$ and $1.36$ respectively. When light travelling in air is incident in these media at equal angle, the angle of refraction will be the minimum:

The speed of light in substance $X$ is $1.25\times {10}^8 \mathrm{m}/\mathrm{s}$ and that in air is $3\times {10}^8 \mathrm{m}/\mathrm{s}$. The refractive index of this substance will be:

The refractive indexes of four substances $P, Q, R$ and $S$ are $1.77, 1.50, 2.42$ and $1.31$ respectively. When light travelling in air is incident on these substances at equal angles, the angle of refraction will be the maximum in:

The refractive index of water is:

The refractive index of water with respect to air is $\frac{4}{3}$. The refractive index of air with respect to water will be:

Refractive indices of water, sulphuric acid, glass and carbon disulphide are $1.33, 1.43, 1.53$ and $1.63$ respectively. The light travels slowest in:

The refractive index of glass with respect to air is $\frac{3}{2}$ and the refractive index of water with respect to air is $\frac{4}{3}$. The refractive index of glass with respect to water will be: