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Interference of sound waves

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Two loudspeakers emit sound waves along the x-axis. The sound has maximum intensity when the speakers are 20 cm apart. The sound intensity decreases as the distance between the speakers is increased, reaching zero at a separation of 60 cm. What is the wavelength of the sound? The answer is not 20 or 60.

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Solution Summary

The wavelength of the wave is calculated when the distance between the two sources for maximum and minimum sound is given.

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