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Parallel light?

  1. Aug 19, 2011 #1
    Hey,

    What is parallel light?

    Thanks.
     
  2. jcsd
  3. Aug 19, 2011 #2

    K^2

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    In geometrical optics, light whose beams are all parallel to each other. In wave optics, a plane wave.
     
  4. Aug 19, 2011 #3
    Hey, thanks for the reply. What does that mean though? i.e. parallel light and plane wave?

    thanks
     
  5. Aug 19, 2011 #4

    K^2

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  6. Aug 20, 2011 #5

    Claude Bile

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    It might also refer to parallel-polarised light, depending on the context.

    Claude.
     
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