In a compton scattering experiment an x-ray photon scatters, Ask an Expert

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In a Compton scattering experiment, an x-ray photon scatters through an angle of 21.0° from a free electron that is initially at rest. The electron recoils with a speed of 2,520 km/s.

(a) Calculate the wavelength of the incident photon.
_____nm

(b) Calculate the angle through which the electron scatters.
______°

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