If the mass defect of ${ }_5 \mathrm{~B}^{11}$ is $0.081 \mathrm{u}$, its average binding energy (in $\mathrm{MeV}$ ) is

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Aicharya · Accepted Answer

Given, $\Delta m$ for ${ }_5 \mathrm{~B}^{11}=0.081 \mathrm{u}$ Number of nucleons $=11$ $ \begin{aligned} 	ext { Binding energy } & =931 	imes \Delta m \mathrm{MeV} \ & =931 	imes 0.081 \ & =75.411 \mathrm{MeV} \end{aligned} $ Average binding energy $ \begin{aligned} & =\frac{	ext { binding energy }}{	ext { number of nucleons }} \ & =\frac{75.411}{11} \ & =6.85 \mathrm{MeV} \end{aligned} $

If the mass defect of ${ }_5 \mathrm{~B}^{11}$ is $0.081 \mathrm{u}$, its average binding energy (in…

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