10. Two loudspeakers are placed facing each 4.0 m apart. The speakers emit sound

Question

10. Two loudspeakers are placed facing each 4.0 m apart. The speakers emit sound in phase with a frequency of 266 Hz. An observer at the center (2.0 m from each speaker along the line joining them) experiences constructive interference. The speed of sound is 343 m/s. (a) What is the wavelength of sound emitted by the speakers? (b) How far toward either speaker must the observer walk to experience destructive interference? (c) How much more does the observer need to walk to experience constructive interference again?

Explanation / Answer

a) wavelength = 343/266 = 1.2895m b)1.2895/2 = .64475m c).64475m

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