X–rays of wavelength strike a target containing free electrons

PHYSICS · Multi-part · AP · Physics 2: Algebra-based · Modern Physics · Modern Physics

Problem

X–rays of wavelength 0.050 nm0.050\,\text{nm} strike a target containing free electrons. A scattered photon is detected at an angle of 60∘60^{\circ} relative to the incident direction. Answer the following questions. Neglect any binding energy of the electrons. (a) Determine the wavelength of the scattered photon. (b) Calculate the decrease in photon energy resulting from the scattering event. (c) Determine the kinetic energy acquired by the electron and comment on the relationship between this value and your answer to part (b).

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