Textbook ExpertVerified Tutor
26 Nov 2021
Given information
Number of fringes shifted from the central reference line,n=296
Wavelength of incident light and n represents number of fringe,=589nm
Step-by-step explanation
Step 1.
n Michelson interferometer, for constructive interference, path difference between two reflected rays is given as
..............(1)
here,
is wavelength of incident light
n- is number of fringes shifted from the central reference line
The shift in number of fringes from the central reference line is equal to twice of the foil thickness since the light wave travel back and forth from the metal foil, therefore 
is foil thickness
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Physics: Principles with Applications
7th Edition, 2013
Giancoli
ISBN: 9780321625922
Solutions
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Section
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