In the figure, two loudspeakers, separated by a distance of d = 2.20 m, are in phase. Assume the amplitudes of the sound from the speakers are approximately the same at the position of a listener, who is d2 = 3.78 m directly in front of one of the speakers. Consider the audible range for normal hearing, 20 Hz to 20 kHz. (a) What is the lowest frequency that gives the minimum signal (destructive interference) at the listener's ear? (b) What is the lowest frequency that gives the maximum signal (constructive interference) at the listener's ear? (Take the speed of sound to be 343 m/s.) Speakers
In the figure, two loudspeakers, separated by a distance of d = 2.20 m, are in phase. Assume the amplitudes of the sound from the speakers are approximately the same at the position of a listener, who is d2 = 3.78 m directly in front of one of the speakers. Consider the audible range for normal hearing, 20 Hz to 20 kHz. (a) What is the lowest frequency that gives the minimum signal (destructive interference) at the listener's ear? (b) What is the lowest frequency that gives the maximum signal (constructive interference) at the listener's ear? (Take the speed of sound to be 343 m/s.) Speakers
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Transcribed Image Text:In the figure, two loudspeakers, separated by a distance of d = 2.20 m, are in phase. Assume the
amplitudes of the sound from the speakers are approximately the same at the position of a listener,
who is d2 = 3.78 m directly in front of one of the speakers. Consider the audible range for normal
hearing, 20 Hz to 20 kHz. (a) What is the lowest frequency that gives the minimum signal
(destructive interference) at the listener's ear? (b) What is the lowest frequency that gives the
maximum signal (constructive interference) at the listener's ear? (Take the speed of sound to be
343 m/s.)
Speakers
Listener
čp-
(a) Number
Units
(b) Number
Units
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