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Frequence and wavelength of a photon

  1. Jun 19, 2007 #1
    1. The problem statement, all variables and given/known data
    Calculate the frequency and wavelength of a photon with 6.2 x 10^4 eV of energy.


    I have no idea where to start, so can anyone please point me in the right direction.
     
  2. jcsd
  3. Jun 19, 2007 #2

    hage567

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    You can relate the energy of a photon to its frequency by using Planck's constant. Have you seen this before: E=hf

    Be careful of your units.
     
  4. Jun 19, 2007 #3
    oh thanks a lot, i used the equation to get frequency
    and for the wavelength, i used E = (h)(c) / λ


    does it look right?
     
  5. Jun 19, 2007 #4

    hage567

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    You can do that to get the wavelength, or you could just directly apply the wave equation c=fλ to get it. A little more straight forward if you've already found the frequency.
     
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