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An electron of mass .m. and charge .e. i...

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

A

`frac(eV)(2m)`

B

`frac(eV)(m)`

C

`sqrtfrac(2eV)(m)`

D

`sqrtfrac(eV)(m)`

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