Question #5669f
1 Answer
Explanation:
I didn't get the answer of
My starting point is the following three equations from quantum physics:
- Photon Energy:
- Electron Wavelength (de Broglie equation):
- Electron Kinetic Energy:
Rearrange equation 2 to get an expression for
Now substitute that into equation 3
Rearrange equation 1 to get an expression for the wavelength
Substitute that into equation 4
Make wavelength from equations 1 and 2 equal to each other to eliminate wavelength from the equations:
Replace
Lastly use equation 2 to get an expression for v and substitute that into the above equation.