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Acoustics Problem

  1. Feb 2, 2006 #1
    Suppose a piano tuner hears 2 beats per second when listening to the combined sound from her tuning fork and the piano note being tuned. After slightly tightening the string, she hears 1 beat per second. Should she loosen or shoud she further tighten the string?

    I believe the answer is to loosen the string, but I'm not sure...

    Thanks in advance!

  2. jcsd
  3. Feb 2, 2006 #2


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    Gold Member

    Well, the beats occur because the notes are of different frequencies, right? As their frequencies get closer, do the number of beats per second increase or decrease? How many beats per second will you hear if you play two notes of the same frequency?
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