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✓ 3 MARKS Numericals
🔥 APPEARED IN 3 BOARD SETS
Define binding energy (BE) of a nucleus. An unstable nucleus has mass number $\text{A} = 240$ and $\frac{\text{BE}}{\text{A}} = 7.6\text{ MeV}$. It splits in two fragments, each of $\text{A} = 120$ with $\frac{\text{BE}}{\text{A}} = 8.5\text{ MeV}$. Calculate the energy released.
YearPaper CodeSetPosition
CBSE 2025Series OtherSet 1Question 26
CBSE 2025Series OtherSet 1Question 25
CBSE 2025Series OtherSet 1Question 24
  • Step 1: Stating the fundamental formula / law statement (+1 Mark)
  • Step 2: Intermediate mathematical substitution or proof steps (+1 Mark)
  • Step 3: Correct final value or conclusion with mandatory SI units (+1 Mark)
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