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JC-59) Stern-Gerlach Revisited
Suppose the silver atoms in the Stern-Gerlach experiment traveled horizontally, first 1 m
through the magnet and then after exiting the magnet, 1 m in a field-free region at a speed of 250 m/s.
What must have been the gradient of Bz, dB/dz, in order that the beams each be deflected a maximum of
0.5 mm from the central position?

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