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An electron of mass m and charge e is ac...

An electron of mass `m` and charge `e` is accelerated from rest through a potential difference `V` in vacuum. The final speed of the electron will be

A

`eV//2m`

B

`sqrt(((2eV)/(m)))`

C

`eV//m`

D

`sqrt(((eV)/(m)))`

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The correct Answer is:
B
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