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In the figure, two isotropic point sources of light (S1 and S2) are separated
by distance 2.40 µm along a y axis and emit in phase at wavelength 930 nm
and at the same amplitude. A light detector is located at point P at
coordinate xp on the x axis. What is the greatest value of Xp at which the
detected light is minimum due to destructive interference?
S1
P
S2
Number
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