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Please teach me a little about nodal and anti nodal lines

  1. Mar 7, 2015 #1
    Random question about waves like this as they pertain to |a-b| = λ(n - ½).


    Is the middle nodal line = 1, since it is 2 over, would Pn = 3 in this image.

    If that is not right, the middle nodal line must = 0, and therefore Pn = 2.

    I don't think this is true because I remember reading the middle nodal line is never 0, only an anti-nodal line, but I might be wrong.
  2. jcsd
  3. Mar 8, 2015 #2


    Staff: Mentor

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