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Interference patterns

  1. Oct 3, 2014 #1
    1. The problem statement, all variables and given/known data
    http://puu.sh/bXBvW/361097a50c.png [Broken]

    2. Relevant equations

    3. The attempt at a solution
    Not sure how to approach
    Last edited by a moderator: May 7, 2017
  2. jcsd
  3. Oct 3, 2014 #2
    Look up the theory and formulas for double slit and for grating. It'a a sensible approach.
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