Embibe Experts Solutions for Chapter: Wave Optics, Exercise 1: Level 1

Considering the fact that the speed of light in glass is not independent of the colour of light, which of the statement is true?

Which one of the following statements is true?

Two straight and narrow slits $0.3 \mathrm{mm}$ apart are illuminated by a monochromatic source of wavelength $5.9\times {10}^{-7} \mathrm{m}$. Fringes are obtained at a distance of $0.30 \mathrm{m}$ from the slit. The width of the fringe is

If two line slits are Illuminated by a wavelength $5\times {10}^{-7} \mathrm{m}$ and the distance between two bright fringes is $0.005 \mathrm{m}$ on a screen $1 \mathrm{m}$ away, then the distance between the slits is

The length of the optical path of two media in contact of length $d_1$ and $d_2$ of refractive indices ${\mu }_1$ and ${\mu }_2$, respectively, is

Which of the following is wrong for interference fringes?

In Young's experiment, the fringe width is found to be $0.4 \mathrm{mm}$. The whole apparatus is immersed in water of refractive index $\frac{4}{3}$, without disturbing the geometrical arrangement, the new fringe width will be

When a drop of oil is spread on a water surface, it displays beautiful colours in daylight because of