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Thermal Radiation. Quantum Nature of Light.

Problem 5.284

A photon with energy ℏω=1.00MeV\hbar \omega=1.00 \mathrm{MeV} is scattered by a stationary free electron. Find the kinetic energy of a Compton electron if the photon's wavelength changed by η=25%\eta=25 \% due to scattering.

Reveal Answer
T=ℏωη/(1+η)=0.20MeVT=\hbar \omega \eta /(1+\eta)=0.20 \mathrm{MeV}
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