- #1
Eric_meyers
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Homework Statement
"A photon of energy E collides with an electron at rest. Calculate the maximum amount of Energy Ek that may be transferred to the electron. Make a graph of Ek versus E, labeling the scale in electronvolts.
Homework Equations
Transfer = Ek = E - mc^2*E/(mc^2 + 2E)
The Attempt at a Solution
So, I'm not sure if I have the correct equation, the reason why is:
I take the derivative of the function and set it equal to 0
E = -mc^2
and then I plug that value into my function of Ek and I get 0.. but how can the max value for energy transfer be 0? I understand the -mc^2 conceptually saying perfect back scattering but I'm not sure.