X rays with a wavelength of 71 pm are directed onto a gold
Chapter , Problem 21(choose chapter or problem)
X rays with a wavelength of 71 pm are directed onto a gold foil and eject tightly bound electrons from the gold atoms.The ejected electrons then move in circular paths of radius r in a region of uniform magnetic field . For the fastest of the ejected electrons, the product Br is equal to 1.88 " 10 #4 T$m. Find (a) the maximum kinetic energy of those electrons and (b) the work done in removing them from the gold atoms
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