BEHe4−BEHe3=20MeV ...(1)
BEHe5−BEHe4=−0.9MeV ...(2)
From eq (1) & (2)
BEHe4>BEHe5>BEHe3
X4>X5>X3
JEE Main 2026 — Physics Modern Physics
The binding energy for the following nuclear reactions are expressed in MeV.
2He3+0n1→2He4+20MeV
2He4+0n1→2He5−0.9MeV
If X3,X4,X5 denote the stability of 2He3,2He4 and 2He5, respectively, then the correct order is :
Held on 24 Jan 2026 · Verified 6 Jul 2026.
X4<X5<X3
X4>X5>X3
X4>X5<X3
X4=X5=X3
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