two parralel slits are illuminated by light of two wavelengths, one of which is (5.8*10^-7 )m. on the screen the fourth dark line of known wavelength coincides with fifth bright line of unkown wavelegth. find the unkown wavelegth.
two parralel slits are illuminated by light of two wavelengths, one of which is (5.8*10^-7 )m. on the screen the fourth dark line of known wavelength coincides with fifth bright line of unkown wavelegth. find the unkown wavelegth.
College Physics
11th Edition
ISBN:9781305952300
Author:Raymond A. Serway, Chris Vuille
Publisher:Raymond A. Serway, Chris Vuille
Chapter1: Units, Trigonometry. And Vectors
Section: Chapter Questions
Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...
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two parralel slits are illuminated by light of two wavelengths, one of which is (5.8*10^-7 )m. on the screen the fourth dark line of known wavelength coincides with fifth bright line of unkown wavelegth. find the unkown wavelegth.
Expert Solution
Step 1
Given data:
Value of known wavelength is, .
Order of fringes of light of known wavelength is, .
Order of fringes of light of unknown wavelength is, .
Step 2
Expression for angular position for constructive interference is given as,
Here, m denotes the order of fringes. And d is the width of slit.
For destructive interference, the expression for the angular position is given as,
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