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Calculation Work Function

  1. Oct 18, 2011 #1
    Calculating Work Function

    I am having trouble identifying a metal (based on its work function) given the wavelength and stopping potential. I will give more specifics below but can anyone help me with useful formulas to make this a little more streamlined in the future? Thanks!

    Ultraviolet radiation with wavelength 200.0 nm hits a metal and electrons are emitted, which can be stopped by a potential of 3.33 V. What is the work function/identity of the metal?
    Last edited: Oct 18, 2011
  2. jcsd
  3. Oct 19, 2011 #2


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    Staff: Mentor

    Start with the equation describing photoelectric effect. You will need to convert between different ways of expressing energy, other than that it is just a simple plug and chug.
  4. Oct 19, 2011 #3
    Thanks I will give it a shot!
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