Relationship between speed, frequency and wavelength:
Condition for constructive interference:
Condition for destructive interference:
Where Δx is the path difference and m is an integer.
m = 1,2,3...
The above conditions apply when the sources are coherent (in-phase).
When the sources are out of phase, the conditions are reversed. That is Δx = mλ describes condition destructive interference.
Two out-of-phase radio antennas at X = ± 300m on the x-axis are emitting 3.0 MHz radio waves.
Is the point (x,y) = (300m, 800m) a point of maximum constructive interference, perfect destructive interference, or something in between?
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