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Frequencies problem

  1. Nov 28, 2004 #1
    The lowest tone to resonate in a close-end pipe of length L is 200Hz. Which is of the following frequencies will not resonate in the pipe?


    Anyone know where I should start on this?
  2. jcsd
  3. Nov 28, 2004 #2


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    I would start with the section in your text on pipes with closed ends.
  4. Nov 28, 2004 #3


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    This is simple, just remember for one end closed.

    Fundamental Frequency:

    [tex] f_{1} = \frac{v}{4l} [/tex]

    The rest of the frequencies will be given by

    [tex] f_{n} = (2n-1)f_{1} ... n=1,2,3...[/tex]
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