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27 Nov 2019

An electron is projected with an initial speed 1.50×106 into theuniform field between the parallel plates in the figure . Assumethat the field between the plates is uniform and directedvertically downward, and that the field outside the plates is zero.The electron enters the field at a point midway between theplates.
The length of the plates is 2cm, and width is 1 cm.

If the electron just misses the upper plate as it emerges from thefield, find the speed of the electron as it emerges from thefield?

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