Statement - 1: Energy is released when heavy nuclei undergo fission or light nuclei undergo fusion.Statement - 2: For heavy nuclei, binding energy per - Physics MCQ AIEEE 2026 | ExamTest.live

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Statement - 1: Energy is released when heavy nuclei undergo fission or light nuclei undergo fusion.Statement - 2: For heavy nuclei, binding energy per nucleon increases with increasing Z while for light nuclei it decreases with increasing Z .

A $Statement - 1 is false, Statement - 2 is true$
B $Statement - 1 is true, Statement - 2 is true; Statement - 2 is correct explanation for Statement - 1$
C $Statement - 1 is true, Statement - 2 is true; Statement - 2 is not a correct explanation for Statement - 1$
D $Statement - 1 is true, Statement - 2 is false$

Solution & Step-by-step Explanation

Statement 1 is true: Fission of heavy nuclei and fusion of light nuclei both move the nuclei towards the peak of the binding energy curve (higher stability), releasing energy.Statement 2 is false: For heavy nuclei (A > 60), binding energy per nucleon actually decreases with increasing Z (or mass number A). For light nuclei, it generally increases with increasing Z until it reaches the peak around Iron.

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Statement - 1: Energy is released when heavy nuclei undergo fission or light nuclei undergo fusion.Statement - 2: For heavy nuclei, binding energy per nucleon increases with increasing Z while for light nuclei it decreases with increasing Z .

Statement - 1 is false, Statement - 2 is true

Statement - 1 is true, Statement - 2 is true; Statement - 2 is correct explanation for Statement - 1

Statement - 1 is true, Statement - 2 is true; Statement - 2 is not a correct explanation for Statement - 1

Statement - 1 is true, Statement - 2 is false

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