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JEE Main 2026 (24 Jan, Shift 1) · Mass Defect & Binding Energy

Mass Defect & Binding Energy question from JEE Main 2026 (24 Jan, Shift 1)

Q2JEE Main 2026 · 24 JAN · SHIFT 1Easy

Mass Defect & Binding Energy

Given below are two statements:

Statement I: For all elements, greater the mass of the nucleus, greater is the binding energy per nucleon.

Statement II: For all elements, nuclei with less binding energy per nucleon transforms to nuclei with greater binding energy per nucleon.

In the light of the above statements, choose the correct answer from the options given below

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Answer: (a)

  1. Statement I: false. BE/ABE/A increases only up to A≈56A \approx 56 and then decreases for heavier nuclei.
  2. Statement II: true. Nuclei move towards greater BE/ABE/A (fission of heavy, fusion of light nuclei) because that releases energy and gives more stable nuclei.
  3. So the answer is (a).
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