Physics · Modern Physics
The total relativistic energy of a free electron including its rest mass energy is E. What is the phase velocity of the wave packet associated with the motion of the electron? (Here, m is the relativistic mass, m0 is the rest mass, and c is the speed of light)
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 12E(m2 - m02)1/2c
- 2c2v = E(m2 - m02)1/2c✓
- 3(m2 - m02)1/2c(E/c2)
- 4E(m2 + m02)1/2c
Correct answer
c2v = E(m2 - m02)1/2c
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