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Finding fundamental frequency with length and successive frequencies

  1. Nov 5, 2012 #1
    1. The problem statement, all variables and given/known data
    Standing waves on a 1.3 m long string that is fixed at both ends are seen as successive frequencies of 24Hz and 48 Hz. What is the fundamental frequency?


    2. Relevant equations
    fo = nv/4L


    3. The attempt at a solution
    Okay, so I don't really know if that is the right equation, so I can't really see how I'm supposed to solve for this... Please help!
     
  2. jcsd
  3. Nov 5, 2012 #2
    What do they mean by "are seen as successive frequencies"?
     
  4. Nov 6, 2012 #3

    haruspex

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    They mean that standing waves can exist on the string at those two frequencies, but at no frequency in between.
    cyclingnerd (I could say, fellow cyclingnerd :approve:) how many wavelengths would there be on a string vibrating at its fundamental frequency? How many at successive harmonics?
     
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