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An alpha partaicle is accelerated throug...

An alpha partaicle is accelerated through a potential difference of `10^4 V`. The gain in K.E. of the alpha particle is .

A

`2 xx 10^4 eV`

B

`2 xx 10^-4 eV`

C

`2 xx 10^4 J`

D

`2 xx 10^4 erg`.

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