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  4. The binding energy per nucleon for 1 H2 and 2 He 4 are 1.1 M eV and 7.0 M eV respectively. The energy released when two 1 H 2 fuse to form 2 He 4 is

Q. The binding energy per nucleon for ${ }_{1} H^{2}$ and ${ }_{2} He ^{4}$ are $1.1 \,M \,eV$ and $7.0 \,M\,eV$ respectively. The energy released when two ${ }_{1} H ^{2}$ fuse to form ${ }_{2} He ^{4}$ is

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Solution:

$Q=(7 \times 4)-(2 \times 2 \times 1.1)=23.6\, M\,eV$

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