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a. X ray are produced in a tube operating at 20.0 kV strikes a target and Compton-
scattered through an angle of 90.0° What is the wavelength shift, AA.
b. A beam of protons with have the same energy scatters from atoms that have a
spacing of 0.150 nm in the crystal. The m-
2 intensity maximum occurs when the
angle is 30.0°. Calculate the kinetic energy (in eV) of each beam.

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