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B Phase difference in standing wave

  1. Mar 28, 2016 #1
    Can someone explain why the phase difference is zero when the there is equal number of nodes between the two vibrating particles.

    Thank you
  2. jcsd
  3. Mar 28, 2016 #2
    You may need to reformulate. Between two particles can be some number of nodes. What would mean for this number to be "equal"?
    Equality is a binary operator. Equal to what? Between two particles there is one number of nodes, not two.
  4. Mar 28, 2016 #3
    Sorry, I meant to say even number of nodes
  5. Mar 28, 2016 #4
    The phase changes by Π (180 degree) when you pass one node. You can see this if you imagine (or draw) a snapshot of the wave. On one side of the node all the points go up and on the other side they all go down.
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