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A beam of x-rays with wavelength 0.2400 nm is directed toward a sample. The x-rays scatter from the electrons within the sample, imparting momentum to the electrons, which are initially at rest in the lab frame. After scattering, the wavelength of the scattered x-rays are measured at various angles relative to the direction of the incoming beam using a detector that can resolve their wavelengths (a) What is the longest wavelength measured by the detector? At what scattering angle does this occur? (b) For this scattering angle, what is the kinetic energy of the recoiling electrons? (c) If the detector measures a wavelength for the scattered x-rays of 0.2412 nm, what is the x-ray scattering angle? (d) What is the direction of travel of the recoiling electrons in this case? (e) What is the energy of the recoil electrons? |
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Answer» (a)LONGEST wavelength = 244.924*10^-12 m(b)kinectic energy = 1.6651*10^-17 JOULES(c)X ray scattering ANGLE = 59.163 degrees(d)recoil angle = 60.1661 degree(e)kinectic energy of recoil electron = 4.1206*10^-18Explanation:find all explaination in the FOLLOWING PDF. |
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