Question: The quantity (lambda_{C} equiv h / m_{e} c) is called the Compton wavelength of the electron. (a) If a photon scatters off an electron at

The quantity $\lambda_{C} \equiv h / m_{e} c$ is called the "Compton wavelength" of the electron.

(a) If a photon scatters off an electron at rest with scattering angle $\theta=45^{\circ}$, what is the photon's change of wavelength in terms of $\lambda_{C}$ ?

(b) For what scattering angle is the change of wavelength a maximum, and what is the change of wavelength in that case?

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