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Topic Nuclear binding energy
Asked 2 times in GEO over 1 years (2024–2025), peaking in 2024.
Key insights
- Most tested in GEO — 2 of 2 PYQs
- Most asked in 2024
- Recurs across 2 years (2024–2025)
Across exams
GEO · 2How the concept evolved
Rising — more than half its appearances (2 of 2) are since 2016.
Related concepts
Ideas UPSC tests alongside this one — keep exploring.
Sample questions
You've seen the pattern — here are a few of the actual PYQs.
GEO2025
The masses of ⁴₂He, ³₁H and ¹₁H nuclides are respectively 4·002603 amu, 3·016056 amu and 1·007276 amu. How much energy should a γ-ray photon possess if it is to split an α-particle into a tritium (³₁H) and a proton (¹₁H)? (Given that 1 amu of mass is equivalent to 931 MeV)
- A 19·30 MeV ✓
- B 0·931 MeV
- C 0·021 MeV
- D 0·194 MeV
✓ Correct answer: (A)
Science & Technology › Physics & Chemistry
GEO2024
Nucleus 240/92 U, which has a binding energy per nucleon as 7·6 MeV, disintegrates into two nuclei of 119/45 Sn. Take 119/45 Sn elements atomic mass number as 120 and binding energy per nucleon as 8·4 MeV. Which one among the following is the correct value of the energy released in the disintegration process ?
- A 192 MeV ✓
- B 190 MeV
- C 188 MeV
- D 3840 MeV
✓ Correct answer: (A)
Science & Technology › Energy & Nuclear
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