Assume that a neutron breaks into a proton and an electron.
Question:

Assume that a neutron breaks into a proton and an electron. The energy released during this process is:

(Mass of neutron $=1.6747 \times 10^{-27} \mathrm{~kg}$

Mass of proton $=1.6725 \times 10^{-27} \mathrm{~kg}$

Mass of electron $=9 \times 10^{-31} \mathrm{~kg}$ )

1. $5.4 \mathrm{MeV}$

2. $0.73 \mathrm{MeV}$

3. $7.10 \mathrm{MeV}$

4. $6.30 \mathrm{MeV}$

Correct Option: , 2

Solution: