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Homework Help: Fundamental frequency / sound waves

  1. May 19, 2009 #1
    1.Calculate the fundamental frequency of a steel rod of length 2.00 m. What is the next possible standing wave frequency of this rod? Where should the rod be clamped to excite a standing wave of this frequency?

    first, i used the formula velocity of sound in the rod v=sqrt(Y/p)
    where Y=20x10^10 Pa and p=7800 kg/m^3
    i got 5063.7 m/s

    then i substitute it to the formula for frequency f=v/4L
    where L is the length of the rod..
    my answer was 632.96 Hz

    is that correct?

    i cannot answer the succeeding questions.. please help..
  2. jcsd
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