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Homework Help: Lyman series

  1. Feb 20, 2006 #1
    How am supposed to calculate the five longest wavelengths of the Lyman series? What values of n are used? I see how you arrive at a definite limit as n goes to infinity, but the five longest? Sort of a dumb question.
  2. jcsd
  3. Feb 20, 2006 #2
    Remember that

    [tex]\Delta E=\frac{hc}{\lambda}[/tex]

    [tex]\Longrightarrow \lambda=\frac{hc}{\Delta E}[/tex]

    [tex]\Delta E=E_{initial}-E_{final}[/tex]

    To get the longest wavelength, [tex]\Delta E[/tex] must be at minimum value
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