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Homework Help: Fluorescent light tube

  1. Nov 1, 2008 #1
    could anyone explain why the mercury vapour inside a fluorescent light tube is kept at a low pressure and the purpose of the coating on the inside of the tube?

    thanks
    marco
     
  2. jcsd
  3. Nov 1, 2008 #2

    LowlyPion

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    Homework Helper

    http://en.wikipedia.org/wiki/Fluorescent_lamp

    See also: http://en.wikipedia.org/wiki/Fluorescent_lamp#Principles_of_operation
     
    Last edited: Nov 1, 2008
  4. Nov 2, 2008 #3
    thanks for that! ;)
     
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