Physics - Modern Physics Question with Solution | TestHub

Mass of proton = mass of anti-proton

$=1.67\times {10}^{-27} \mathrm{kg}=1\mathrm{ }\mathrm{amu}$

Energy equivalent to amu =$931 \mathrm{MeV}$.

So, energy equivalent to$2 \mathrm{amu}$$=2\times 931$$\mathrm{MeV}$

$=1862\times {10}^6\times 1.6\times {10}^{-19}$

$=2.97\times {10}^{-10}\mathrm{J}$

$\approx 3\times {10}^{-10} \mathrm{J}$