A proton has a mass $1.67 \times 10^{-27} \,kg$ and charge $+1.6 \times 10^{-19} \,C$. If the proton is accelerated through a potential difference of million volts, then the kinetic energy is ......... $J$
  • A$1.6 \times 10^{-15}$
  • B$1.6 \times 10^{-13}$
  • C$1.6 \times 10^{-21}$
  • D$3.2 \times 10^{-13}$
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