Join the Most Relevant JEE Main 2025 Test Series & get 99+ percentile! Join Now
Search any question & find its solution
Question: Answered & Verified by Expert
Assume that the nuclear binding energy per nucleon $(B / A)$ versus mass number $(A)$ is as shown in the figure. Use this plot to choose the correct choice (s) given below.

PhysicsNuclear PhysicsJEE AdvancedJEE Advanced 2008 (Paper 1)
Options:
  • A
    Fusion of two nuclei with mass numbers lying in the range of $1 < A < 50$ will release energy
  • B
    Fusion of two nuclei with mass numbers lying in the range of $51 < A < 100$ will release energy
  • C
    Fission of a nucleus lying in the mass range of $100 < A < 200$ will release energy when broken into two equal fragments
  • D
    Fission of a nucleus lying in the mass range $200 < A < 260$ will release energy when broken into two equal fragments
Solution:
2091 Upvotes Verified Answer
The correct answers are:
Fusion of two nuclei with mass numbers lying in the range of $51 < A < 100$ will release energy,
Fission of a nucleus lying in the mass range $200 < A < 260$ will release energy when broken into two equal fragments
In fusion two or more lighter nuclei combine to make a comparatively heavier nucleus. In fission, a heavy nucleus breaks into two or more comparatively lighter nuclei. Futher, energy will be released in a nuclear process if total binding energy increases. $\therefore$ correct options are (b) and (d).

Looking for more such questions to practice?

Download the MARKS App - The ultimate prep app for IIT JEE & NEET with chapter-wise PYQs, revision notes, formula sheets, custom tests & much more.