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Plotting Stopping Voltage vs. Frequency

  1. Apr 14, 2014 #1
    1. The problem statement, all variables and given/known data

    Plotting stopping voltage vs. frequency, we expect to find:
    a) the slope is related to Planck's constant and the intercept is related to the work function of the metal

    b) the slope is related to the work function of the metal and the intercept is related to Planck's constant

    c) the slope is the work function of the metal divided by Planck's constant and the intercept is irrelevant

    d) the intercept is Planck's constant divided by the work function of the metal and the slope is irrelevant

    2. Relevant equations

    Vs= (h/e)f - (work function/e)


    3. The attempt at a solution
    I think the answer is (A) because the planck's constant is the slope and the intercept is the work function, but I am not sure. Any help would be great :)
     
  2. jcsd
  3. Apr 14, 2014 #2

    BvU

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    "planck's constant is the slope" is a bit strange. Idem "the intercept is the work function".
    Fortunately the wording of a) is more accurate :smile:

    For the uninitiated: this is not about Foucault's pendulum! But about ... ?
    (meaning: try to be a bit more complete under 1)...
     
  4. Apr 14, 2014 #3
    Thank you so much for clarifying. I thought the wording too was unclear.
     
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