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Most Important Selected Qs for JEE AdvancedPhysicsNuclear Physics

Assume that the nuclear binding energy per nucleon (B/A) versus mass number (A) is as shown in the figure. Consider a nucleus of A=110 . Fission of this nucleus results into 2 fragments. Which of the following could possibly be the mass number of the resulting nuclei?

Options

  1. A55 and 55
  2. B70 and 40
  3. C100 and 10
  4. D90 and 20

Correct answer

B. 70 and 40

Step-by-step solution

Fission of a nucleus is feasible only if the binding energy of daughter nuclei is more than the parent nucleus. A=55 will have more B E than 110 . A=70 will have same B E as 110 but A=40 will have more B.E. A=100 will have same B E as 110 but A=10 will have lesser B.E. A=90 will have same B E as 110 but A=20 will have lesser B.E.

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