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The kinetic energy (in J) of a particle of mass $4.5 \times 10^{-31} \mathrm{~kg}$ having a wavelength of $1000 \mathrm{~nm}$ is : $\left(\mathrm{h}=6.62 \times 10^{-34} \mathrm{~J} \mathrm{~s}\right)$
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The correct answer is:
$4.86 \times 10^{-25}$
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