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Homework Help: Solving for constants given boundary conditions

  1. Sep 21, 2010 #1
    1. The problem statement, all variables and given/known data

    [PLAIN]http://img843.imageshack.us/img843/3515/11193469.png [Broken]

    2. Relevant equations

    3. The attempt at a solution

    [PLAIN]http://img801.imageshack.us/img801/4829/scan0001i.jpg [Broken]

    An upload of my attempt to solve the problem. Not sure to interpret the results.
    A = B = 0
    C = -C*
    C = Ce-2ikL
    Last edited by a moderator: May 4, 2017
  2. jcsd
  3. Sep 21, 2010 #2
    That's not quite right. There can be other values of k for which sin(kL)=0. This means that B is not necessarily zero. Hence solve the equation sin(kL)=0 for k.
    After this to get the B you have to normalize the wavefunction.
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