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

Arrive at Snell's law of refraction, using Huygen's principle for refraction of a plane wave.

In Young's double-slit experiment, the slits are separated by $0.28 mm$ and the screen is placed at a distance of $1.4 m$away from the slits. The distance between central bright fringe and fifth dark fringe is measured to be $1.35 cm$. Calculate the wavelength of light used. Also find the fringe width is the screen is moved $0.4 m$ towards the slits, for the same experimental setup.

For which angle of incidence reflected ray is completely polarized?

What is diffraction of light?

In a Young's double slit experiment wavelength of light used is $5000 \stackrel{\circ }{\mathrm{A}}$ and distance between the slits is $2 \mathrm{mm}$, distance of screen from the slits is $1 \mathrm{m}$. Find fringe width and also calculate the distance of $7\mathrm{th}$ dark fringe from central bright fringe.

Using Huygen's principle, show that the angle of incidence is equal to the angle of reflection when a plane wavefront is reflected by a plane surface.

Obtain the expression for the fringe width of interference fringes in Young's Double slit experiment.