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Thermal Radiation. Quantum Nature of Light.

Problem 5.292

Having collided with a relativistic electron, a photon is deflected through an angle θ=60∘\theta=60^{\circ} while the electron stops. Find the Compton displacement of the wavelength of the scattered photon.

Reveal Answer
Δλ=(4ℏ/mc)sin⁡2(θ/2)=1.2pm\Delta \lambda=(4 \hbar / m c) \sin ^{2}(\theta / 2)=1.2 \mathrm{pm}
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