Collision Of A Neutron With An Atom

A neutron with an energy of 4.6 MeV collides elastically with proton and is retarded. Assuming that upon each collision the neutron is deflected by 45^(@) , find the number of collisions which will reduce its energy to 0.23 eV .

Which of the following are evidences for the existence of neutrons in an atom?

Consider an elastic collision between a neutron and a light nuclei like Beryllium and colculate neuton's energy transferred to Beryllium,

Atomic Collision

Atomic Collision

A free hydrogen atom in its ground state is at rest. A neutron having kinetic energy k_(0) collides head one with the atom. Assume that mass of both neutron and the atom is same. (a) Find minimum value of k_(0) so that this collision can be inelastic. (b) If k_(0) = 25 eV , find the kinetic energy of neutron after collision if its excites the hydrogen atom to its second excited state. Take ionization energy of hydrogen atom in ground state to be 13.6 eV .

A neutron moving with a speed v makes a head-on collision with a hydrogen in ground state kept at rest which inelastic collision will be take place is (assume that mass of photon is nearly equal to the mass of neutron)