Atomic Physics Question 9
Question 9 - 01 February - Shift 1
The mass of proton, neutron and helium nucleus are respectively $1.0073 u, 1.0087 u$ and $4.0015 u$. The binding energy of helium nucleus is:
(1) $14.2 MeV$
(2) $28.4 MeV$
(3) $56.8 MeV$
(4) $7.1 MeV$
Show Answer
Answer: (2)
Solution:
Formula: Binding energy
B.E of Helium $=(2 m_P+2 m_N-m _{H e}) c^{2}$
$=28.4 MeV$
