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Spectroscope: dark absorption lines

  1. Dec 27, 2006 #1
    Why are Absorption lines dark?


    I don't really understand the spectroscope and how it works... Can anyone help me out with this theoretical question? No math involved!!

    Thanks.
     
  2. jcsd
  3. Dec 27, 2006 #2

    Doc Al

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    Staff: Mentor

    Last edited by a moderator: Apr 22, 2017
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