# In air where the speed of sound is 344 m/s, two identical loudspeakers 10.0 m apart are driven by…

In air where the speed of sound is 344 m/s, two identical loudspeakers 10.0 m apart are driven by the same oscillator with a frequency of f 21.5 Hz (Fig. P18.10). (a) Explain why a receiver at point A records a minimum in sound intensity from the two speakers. (b) If the receiver is moved in the plane of the speakers, what path should it take so that the intensity remains at a minimum? That is, determine the relationship between x and y (the coordinates of the receiver) that causes the receiver to record a minimum in sound intensity. (c) Can the receiver remain at a minimum and move far away

In air where the speed of sound is 344 m/s, two identical loudspeakers 10.0 m apart are driven by the same oscillator with a frequency of f 21.5 Hz (Fig. P18.10). (a) Explain why a receiver at point A records a minimum in sound intensity from the two speakers. (b) If the receiver is moved in the plane of the speakers, what path should it take so that the intensity remains at a minimum? That is, determine the relationship between x and y (the coordinates of the receiver) that causes the receiver to record a minimum in sound intensity. (c) Can the receiver remain at a minimum and move far away from the two sources? If so, determine the limiting form of the path it must take. If not, explain how far it can go

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