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Physics · 2023 · 3 marks

CBSE 2023 · Region 5 · Set 3 · Q30

(a) Calculate the binding energy of an alpha particle in MeV. Given mass of a proton =1.007825 u mass of a neutron =1.008665 u mass of He nucleus…

(a)
Calculate the binding energy of an alpha particle in MeV . Given mass of a proton $\displaystyle =1.007825 \mathrm{u}$ mass of a neutron $\displaystyle =1.008665 \mathrm{u}$ mass of He nucleus $\displaystyle =4.002800 \mathrm{u}$ $\displaystyle 1 \mathrm{u}=931 \mathrm{MeV} / \mathrm{c}^{2}$
OR
(b)
A heavy nucleus P of mass number $\displaystyle 240$ and binding energy $\displaystyle 7.6$ MeV per nucleon splits into two nuclei $\displaystyle \mathrm{Q}$ and $\displaystyle \mathrm{R}$ of mass number $\displaystyle 110$ and $\displaystyle 130$ and binding energy per nucleon $\displaystyle 8.5$ MeV and $\displaystyle 8.4$ MeV respectively. Calculate the energy released in the fission.
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