A hydrogen atom at rest de excites from n 2 state to n 1

Last updated: 6/8/2023

A hydrogen atom at rest de excites from n 2 state to n 1 state if recoil of atom is not taken into account then the percentage error in momentum of photon is a x 10 7 The value of 5a is The energy equivalent of rest mass of hydrogen atom is 940 Mev