Two in-phase loudspeakers, which emit sound in all
Chapter 17, Problem 17.63(choose chapter or problem)
Two in-phase loudspeakers, which emit sound in all directions, are sitting side by side. One of them is moved sideways by 3.0 m, then forward by 4.0 m. Afterward, constructive interference is observed 1 4 and 3 4 of the distance between the speakers along the line that joins them. What is the maximum possible wavelength of the sound waves?
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