question_answer

A neutron moving with a speed 'v' makes a head on collision with a stationary hydrogen atom in ground state. The minimum kinetic energy of the neutron for which inelastic collision will take place is:                                                   [JEE ONLINE 10-04-2016]

A) 10.2 eV

B) 12.1 eV

C) 20.4 eV

D) 16.8 eV

Correct Answer: C

Solution :

[c] Assuming perfectly inelastic collision for maximum loss in K.E.