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NEET 2010 (AIPMT, Prelims) · Mass Defect & Binding Energy

Mass Defect & Binding Energy question from NEET 2010 (AIPMT, Prelims)

Q21NEET 2010 · AIPMT · PRELIMSEasy

Mass Defect & Binding Energy

The mass of a ${}_{3}^{7}Li$ Li nucleus is 0.042 u less than the sum of the masses of all its nucleons. The binding energy per nucleon of ${}_{3}^{7}Li$ nucleus is nearly

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Answer: (b)

$BE = \Delta m \times 931 = 0.042 \times 931 = 39.1$ MeV
$\dfrac{BE}{A} = \dfrac{39.1}{7} \approx 5.6$ MeV
So the answer is (b) 5.6 MeV.

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