Posted by josh on Sunday, July 4, 2010 at 5:25am.
Destructibe interference will occur if the difference between the distances to the two speakers is n + 1/2, where n is an integer zero or higher. When n = 0, you get the longest wavelength and lowest frequency with destructive interference.
Therefore 4.6 - 3.4 = 1.2 = (wavelength)/2
wavelngth = 2.4 m
freq
Destructive interference will occur if the difference between the distances to the two speakers is n + 1/2, where n is an integer equal to zero, or higher. When n = 0, you get the longest wavelength and lowest frequency with destructive interference.
Therefore 4.6 - 3.4 = 1.2 = (wavelength)/2
wavelength = 2.4 m
frequency = (speed of sound)/2.4 m
= 140 Hz (approx.)
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