Embibe Experts Solutions for Chapter: Wave Optics, Exercise 1: West Bengal Board-2019

In the Fraunhofer diffraction experiment, the first minima of red light ($660 \mathrm{nm}$) is formed at the first maxima of another light of wavelength $\lambda \text{'}$. Find the value of $\mathrm{\lambda }\text{'}$.

What is wavefront of a wave?

Prove the laws of reflection using Huygens' principle.

In Young's double slit experiment, what is the effect on the interference pattern if the distance between the two slits is halved?

In Young's double slit experiment, what is the effect on the interference pattern if the distance between the screen and the plane of slit is doubled

In Young's double slit experiment, what is the effect on the interference pattern if one of the slits is covered with a translucent paper?

Write down the conditions of constructive interference.

The refractive index of the glass is $1.55$,What is its polarising angle? Determine the angle of refraction for the polarising angle.