X-rays with a wavelength of 0.00100 nm are scattered by free electrons at 130° from their original direction
What is the kinetic energy (in keV) of each recoil electron? (melectron = 9.11 × 10-31 kg, c = 3.00 × 108 m/s, 1 eV = 1.60 × 10-19 J, h = 6.626 × 10-34 J ? s)
993 keV
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