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Standing Waves Question

  1. Apr 16, 2009 #1
    Here's one for you guys. I've done some research and I couldn't find an exact answer to my question...

    In the experiment shown here:

    http://www.itc.csmd.edu/mth/ahouser/PHY1010/labs/Lab10StandingWaves.pdf [Broken]

    Why is there no standing wave on the segment of the string between the pulley and the mass hanger? I'm guessing it's because the pulley is a fixed node that cannot oscillate? Is there more to it than this?
    Last edited by a moderator: May 4, 2017
  2. jcsd
  3. Apr 16, 2009 #2
    Yes I believe that the pulley deadens the vibration at that point. Even though it is at a node, and would continue vibration if the pulley was very very small, I think it is big enough to deaden the string that is wrapping around it.
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