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March 26, 2017

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The seventh harmonic of a one end closed pipe organ has a frequency of 732 Hz, on a day when the temperature is 10 degrees Celsius. How long is the pipe? How long would it be for 732 to be the first harmonic?

  • Physics - URGENT - ,

    speed of sound in air at atmosphere
    v = 331 m/s + (0.6 m/s/C)•T
    v=wavelength * Frequency
    => wavelength= v/Frequency = 0.46 m if 732 were first harmonic

    => Length being 7th harmonic
    = 7 * 0.46 m = 3.22 m

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