See attached file.© BrainMass Inc. brainmass.com March 4, 2021, 8:28 pm ad1c9bdddf
In equation 1): h k should be hbar k
Let's differentiate the energy momentum relation w.r.t. the momentum p. The energy momentum relation is:
E^2 = (m c^2)^2 + p^2 c^2
here m is ...
This solution provides a detailed explanation is given.