The mass of proton is 1.0073 u and that of neutron is 1.0087 u ( u = atomic mass unit). The binding energy of 24 He is (Given: helium nucleus mass ≈ 4.0015 u )

Question

The mass of proton is 1.0073 u and that of neutron is 1.0087 u ( u = atomic mass unit). The binding energy of 24 He is (Given: helium nucleus mass ≈ 4.0015 u ) (A) 0.0305 J (B) 0.0305 erg (C) 28.4 MeV (D) 0.061 u

Tardigrade Admin · Accepted Answer

BE =Δ m × 931 =[2(1.0087+1.0073)-4.0015] × 931 =28. 4 Me V

Q. The mass of proton is $1.0073 u$ and that of neutron is $1.0087 u (u =$ atomic mass unit). The binding energy of $_{2}^{4} He$ is (Given : helium nucleus mass $\approx 4.0015 u$ )

0.0305 J

0.0305 erg

28.4 MeV

0.061 u

$BE = Δ m \times 931$
$= [2 (1.0087 + 1.0073) - 4.0015] \times 931$
$= 28. 4 M e V$

Q. The mass of proton is 1.0073u and that of neutron is 1.0087u(u= atomic mass unit). The binding energy of 24​He is (Given : helium nucleus mass ≈4.0015u )