question_answer

An electron of mass m and charge e is accelerated from rest through a potential difference V in vacuum. Its final velocity will be:

A)  \[\frac{eV}{2m}\]                          

B)         \[\frac{eV}{m}\]

C)  \[\sqrt{\frac{2eV}{m}}\]             

D)         \[\sqrt{\frac{eV}{m}}\]