In a single slit experiment, the distance between two dark fringes of the second order is 10 cm on a screen which is 1.5 m away. If the wavelength of the light is 650 nm, find the width of the slit.   Please provide a well explained and right solution for the following.

University Physics Volume 3
17th Edition
ISBN:9781938168185
Author:William Moebs, Jeff Sanny
Publisher:William Moebs, Jeff Sanny
Chapter3: Interference
Section: Chapter Questions
Problem 61AP: A double-slit experiment is to be set up so that the bright fringes appear 1.27 cm apart on a screen...
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In a single slit experiment, the distance between two dark fringes of the second order is 10 cm on a screen which is 1.5 m
away. If the wavelength of the light is 650 nm, find the width of the slit.

 

Please provide a well explained and right solution for the following. 

Expert Solution
Step 1 :Introduction

The fringe width which is the distance between two consecutive fringes is calculated by using the formula β=λDd , where λ is the wavelength , D is the distance between the slit and screen  and d is the slit width .

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