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Determine Planck's Constant from gradient

  • Thread starter ZedCar
  • Start date
  • #1
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Homework Statement



Determine Planck's Constant from gradient

Homework Equations





The Attempt at a Solution



I have a graph entitled "Photoelectric effect: stopping voltage as a function of light frequency"

The y-axis is the Stopping Voltage (V), the x-axis the Frequency (Hz).

How do I determine Planck's Constant (h) from the gradient?

Thanks!
 

Answers and Replies

  • #2
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What is the kinetic energy of a photo-emitted electron?
 
  • #3
Redbelly98
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Homework Equations

Why is your "Relevant equations" section blank? It is a photoelectric effect problem, look up the equation that describes the photoelectric effect.
 

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