First slide
Collisions
Question

A neutron collides head-on with a stationary hydrogen atom in ground state. Which of the following statements are correct (Assume that the hydrogen atom and neutron has same mass):

Moderate
Solution

Loss of energy for inelastic collision =E2

                                                 (When m1=m2 ) 

 Emin2=10.2eV             [First excitation energy] Emin=20.4eV

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