Embibe Experts Solutions for Chapter: Interference and Diffraction, Exercise 1: Maharashtra Board-2019

In interference pattern, using two coherent sources of light; the fringe width is ____.

State the conditions to get constructive and destructive interference of light.

In a bi-prism experiment, light of wavelength $5200 \stackrel{0}{\mathrm{A}}$ is used to get an interference pattern on the screen. The fringe width changes by $1.3 \mathrm{mm}$ when the screen is moved towards bi-prism by $50 \mathrm{cm}$. Find the distance between two virtual images of the slit.

In Young’s experiment interference bands were produced on a screen placed at $150 \mathrm{cm}$ from two slits, $0.15 \mathrm{mm}$ apart and illuminated by the light of wavelength $6500 \stackrel{\mathrm{o}}{A}$. Calculate the fringe width.

Monochromatic light of wavelength 4300 Å falls on a slit of width ‘a’. For what value of ‘a’ the first maximum falls at 30°?

A diffraction pattern is obtained by making blue light incident on a narrow slit. If blue light is
replaced by red light, then the diffraction bands _______.

State the factors on which resolving power of microscope depends. How can it be increased?

In a bi-prism experiment, light of wavelength $5200 \stackrel{0}{\mathrm{A}}$ is used to get an interference pattern on the screen. The fringe width changes by $1.3 \mathrm{mm}$ when the screen is moved towards bi-prism by $50 \mathrm{cm}$. Find the distance between two virtual images of the slit.