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

The colour are characterised by which of following character of light-

When the object is self-luminous, the resolving power of a microscope is given by expression:

Why do we not use $X$-rays in the RADAR?

A wave shown by the equation $y=a\sin (\omega t+\varphi )$ is totally reflected by denser medium, then the following will change - 

If in Young's double-slit experiment, the slit distance is $3 \mathrm{cm}$, the separation between slits and screen is $70 \mathrm{cm}$ and wavelength of light is $1000 \stackrel{\circ }{\mathrm{A}}$, then fringe width will be

Separations between slits are halved and between screen and slits is double. Final fringe width if the original is $w$.

What happens by the use of white light in Young's double-slit experiment

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