Entering Mass Spectrometer Ions Pass Velocity Selector Consisting Parallel Plates Separate Q28620665
Before entering a mass spectrometer, ions pass through avelocity selector consisting of parallel plates separated by 2.1 mmand having a potential difference of 161 V. The magnetic fieldbetween the plates is 0.42 T. The magnetic field in the massspectrometer is 1.2 T.
1)
(a) Find the speed of the ions entering the massspectrometer.
m/s
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2)
(b) Find the difference in the diameters of the orbits of singlyionized 238U and 235U. (The mass of a235U ion is 3.903 x 10-25 kg.)
mm
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