- #1
emdezla
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Homework Statement
Four identical wave sources (s1,s2, s3,s4 ) are located at the corners of a square.
We know the phase at three sources: 0 at s1, π/4 at s2, π/2 at s3. Whet is the phase we have to give to s4 in order to have a maximun of intensity at the center of the square?
Homework Equations
δ = k*Δr - Φo
δ -> phase angle
k -> wavenumber
Δr -> distance difference
Φo -> phase at the source
The Attempt at a Solution
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The main problem I have is that I don´t know how to apply the formula when we have more than two sources. It's sure that Δr = 0 because all sources are at the same distance to the middle, but I don't know how to express Φo
I also know that the intensity is maximised when δ = 2mπ
Thank you very much for your help!