CBSE Class 12 · 2018 · Modern PhysicsVery Short Answer

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Four nuclei of an element undergo fusion to form a heavier nucleus, with release of energy. Which of the two — the parent or the daughter nucleus — would have higher binding energy per nucleon?

Answer: The daughter (heavier) nucleus.

Solution

Energy is released in fusion only when the product is more tightly bound than the reactants, i.e. when it has a greater binding energy per nucleon.
Hence the heavier (daughter) nucleus has the higher binding energy per nucleon.

The daughter (heavier) nucleus

CBSE Class 12 Board · 2018 · Subjective

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