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Homework Help: What is the frequency of a photon of energy 58eV?

  1. Jun 5, 2008 #1
    1. The problem statement, all variables and given/known data

    What is the frequency of a photon of energy 58eV?

    2. Relevant equations

    E=hF

    where H is Planck's constant, 6.63x10^-34



    3. The attempt at a solution

    58/ (6.63x10^-34) = 8.75e34

    that is not correct.

    Do i have the energy eV into a certain unit?
     
  2. jcsd
  3. Jun 5, 2008 #2

    Defennder

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    Hint: 1eV = 1.602E-19 J
     
  4. Jun 5, 2008 #3

    Redbelly98

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    When in doubt, put everything in units of MKS (meters, seconds, and kg).

    MKS energy unit is the Joule = kg * m^2 / s^2
     
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