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Two Speakers and Microphone W-b5g
A moveable, free-standing microphone attached to an oscilloscope picks up the interference pattern produced by two identically-driven speakers. Fishbane Chapter:   15.4 RHK 5th:   19.5 SJ 3rd Chapter:   14.2 PIRA DCS classification:   3B55.11

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Physics Lecture Demonstrations at the Department of Physics and Astronomy
The Johns Hopkins University