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(Solved): Two loudspeakers generate the same pure tones, with the same wavelength, and are spaced two and a ha ...



Two loudspeakers generate the same pure tones, with the same wavelength, and are spaced two and a half wavelengths apart Along the line joining the two loudspeakers (shown as dotted line below), at how many points will we observe constructive interference? 

 

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SOLUTION Let at O (distance x) from A constructive interference occurs then the distance of O from B is (L?x) A B O L?x L=2.5? x
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