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Physics Diffraction and Waves

  1. Dec 4, 2009 #1
    Hi, I started a new assignment, the last one for my course and its hard as !@#@.

    I don't know how to start these questions at all if anyone can give some guidance or formulas which can be used that would be great!

    http://img11.imageshack.us/img11/9773/53830806.png [Broken]
    Last edited by a moderator: May 4, 2017
  2. jcsd
  3. Dec 5, 2009 #2
    Can anyone help? My friends are clueless on what to do as well xD
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