So I'm doing homework on superposition and polarisation and there's a question on phase difference/ path difference that i have no idea how to answer. These are the questions:
b) path differences give rise to phase differences. By how much do the following change the phase difference?
(i) 1 wavelength
(iii) 3 wavelength/4
c) What path differences would give the following phase differences?
(i) 90 degrees
(ii) 120 degrees
Any help would be great!!
Phase difference/ path difference
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- 26-09-2016 21:57
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- 27-09-2016 02:06
it's a linear relationship
so... if difference in path (Dl) = 0λ
then difference in phase (Dφ) = 0 degrees
if difference in path = 100λ
then difference in phase = 36000 degrees