PhysicsJEE Main 23 Jan 2026, Shift 2·Q21·Numerical·Easy–moderate

Nuclei · Radioactivity and nuclear energy

The average energy released per fission for the nucleus of

{}^{235}_{92}\mathrm{U}

is 190 MeV. When all the atoms of 47 g pure

{}^{235}_{92}\mathrm{U}

undergo fission process, the energy released is

\alpha\times10^{23}

MeV. The value of

\alpha

is .
(Avogadro Number

= 6\times10^{23}

per mole)

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