Deutron is a bound state of a nuetron and a proton with a binding energy B=2.2 MeV. A `gamma-rays` of energy E is aimed at a deuteron nucleus to try to break it into a (neutron+proton) such that the n and p move in the direction of the incident `gamma-rays`. If E=B, show that this cannot happen. Hence calculate how much bigger than B must E be for a such a process to happen.