Determine Planck's Constant from gradient

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To determine Planck's Constant from the gradient of a graph plotting stopping voltage against light frequency, the relevant equation from the photoelectric effect must be utilized. The equation relates the stopping voltage to the frequency of light, indicating that the gradient of the graph is equal to Planck's Constant divided by the charge of an electron. The kinetic energy of a photo-emitted electron can also be derived from this relationship. It is essential to reference the correct equations to solve the problem effectively. Understanding these concepts is crucial for accurately determining Planck's Constant.
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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!
 
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What is the kinetic energy of a photo-emitted electron?
 
ZedCar said:

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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