A hydrogen atom initially at rest and free to move in the

Last updated: 6/14/2023

A hydrogen atom initially at rest and free to move in the second excited state It comes to ground state by emitting a photon then the momentum a hydrogen atom due to recoil is 1 12 1 x 10 27 Kg ms 1 X 2 6 45 10 27 Kg ms 1 3 3 x 10 27 Kg ms 1 4 1 5 10 27 Kg ms 1