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Diffraction Grating Spectrometry Question [closed]

Yes, this is a homework question, but I've already failed to solve it enough times that the online system hosting it isn't going to give me any marks, so I figure it's a good time to stop hitting the ...
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Interferometer problem about periodic fringe patterns [closed]

Please,kindly help me; my teacher assigned me problem set, and she never went over anything about interferometers in class. Also, there is almost no information about about how to solve interferometer ...
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2answers
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What is the fringe separation in Young's double slit experiment?

In the double slit experiment, a pattern of dark and bright bands appears on the screen. Is the fringe separation the distance between two bright bands? Question: In a double slit experiment ...
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1answer
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What is the equation for condition of obtaining a bright spot in a wedge shaped film?

I want to know if the condition for obtaining a bright spot in a wedge shaped film is $2 \mu t\cos(r+\theta)=(n+\frac{1}{2})λ$ or $2 \mu t \cos(r+\theta)=(2n-1)λ/2$ . $t$ = thickness $r$ = angle ...