Difference between Photon and Electron

[Rhiana_Cayanan_2F]

This is concerning the Achieve HW Week 2,3,4 Assignment Question #13,

What would the difference be in calculating the energies of the photon and electron? I get the process but if I had to guess, does the process towards finding the energies differ in terms of inputting the mass?

[706212653]

Yes, the difference in the calculations is with the mass. Photons have no mass, so you can just use E=hv to calculate energy, but because electrons have mass, you have to use de broglie's equation λ=h/p and use the mass of the electron which is on the reference table

[Miguel Hernandez LEC 3]

In order to find the energy of the photon for question 13, you would use the equation: E=hc/lambda. To find the energy of the electron in question 13 you would have to use the debrogie equation in order to first find the velocity of the electron and then you would use KE=1/2mv^2 in order to find the energy. For both equations you would have to convert the wavelengths to meters.