2. A free electron can be modeled as a plane wave, v(t) = e(k#-wt), Using the de Broglie relations for k and w, calculate the phase velocity of this wave, vph = w/k for an electron with kinetic energy K = 2.2 MeV. Can any information be transmitted at this speed?

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2. A free electron can be modeled as a plane wave, (t) = e²(ka-wt). Using the de Broglie relations for
k and w, calculate the phase velocity of this wave, vph = w/k for an electron with kinetic energy K =
2.2 MeV. Can any information be transmitted at this speed?
Transcribed Image Text:2. A free electron can be modeled as a plane wave, (t) = e²(ka-wt). Using the de Broglie relations for k and w, calculate the phase velocity of this wave, vph = w/k for an electron with kinetic energy K = 2.2 MeV. Can any information be transmitted at this speed?
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