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Separation of Variables Spherical Coordinates

  1. Dec 16, 2014 #1
    1. The problem statement, all variables and given/known data

    So i'm doing a question from one of my past exams as attached, there are no copy right issues with this document that I know of and have asked my lecturer who wrote the exam and he said I am welcome to upload it. The question is 1)b)iv), my attempt is attached. I end up with a 2l+1 where there should just be 1, can anybody tell me where I went wrong?

    2. Relevant equations

    Relevant equations are attached in the past exam

    3. The attempt at a solution

    My scan is too large to attach so please use the url provided. Thanks

    http://tinypic.com/r/4ki9w5/8
     

    Attached Files:

  2. jcsd
  3. Dec 16, 2014 #2
    Solved I was adding the two instead of subtracting them. I can do electrodynamics but I can't do simple addition. Time to go and cuff my primary school teacher.
     
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