-The mass of the proton is 1840 times of electron, its potential difference is \( 1 \mathrm{kV} ...

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-The mass of the proton is 1840 times of electron, its potential difference is \( 1 \mathrm{kV} \). The kinetic energy of proton is :
(A) \( 920 \mathrm{kV} \)
(B) \( \frac{1}{1840} \mathrm{keV} \)
(C) \( 1 \mathrm{keV} \)
(D) \( 1840 \mathrm{keV} \)
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