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Introduction to Waves

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Question

find the wavelength of a tone produced by a body vibrating with the frequency 4Khz.The speed of sound in air is 344m/s.

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Solution

Given,
Frequency=4 kHz=4000 Hz
Speed of sound=344 m/s
Wavelength=?
Using formula,
Speed=Frequency x Wavelength
or Wavelength=Speed / Frequency
=344/4000=0.086 m

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