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QWP Polarizer Question

  1. Dec 14, 2011 #1
    1. The problem statement, all variables and given/known data

    http://i.imgur.com/awJgh.png
    awJgh.png

    2. Relevant equations



    3. The attempt at a solution

    Is just because lights out of QWP become unpolarized so 0.5*0.5 = 0.25?
    Thanks!
     

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  2. jcsd
  3. Dec 14, 2011 #2
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