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Why do some objects reflect light while some let light pass through them?

  1. Sep 27, 2011 #1
    i've read that some molecules release absorbed photons in the opposite direction[causing reflection] while some release it in the original direction[making the object transparent]......what molecular factors decide this phenomenon?why do some objects reflect?why are others transparent?
     
  2. jcsd
  3. Sep 27, 2011 #2

    Drakkith

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