Select the best continuation of the following sentence. In the calculation of the mass-velocity correction to the energy levels of the hydrogen atom, the use of degenerate perturbation theory was 'unnecessary' because Select an answer and submit. For keyboard navigation, use the up/down arrow keys to select an answer. a b с d e the perturbation Ĥ₁ p4 8m²c³ both and commute with the perturbation Ĥ₁ the perturbation H₁ = only affects [= 0 states which are not degenerate. the unperturbed Hamiltonian already includes spin-orbit splitting, which lifts all the degeneracies. pª 8m²c³ p4 8m²c³ does not depend on spin or involve 1. there is a subtle symmetry for the central potential V(r) = Ze²/4πor when n = 1.

Select the best continuation of the following sentence. In the calculation of the mass-velocity correction to the energy levels of the hydrogen atom, the use of degenerate perturbation theory was 'unnecessary' because Select an answer and submit. For keyboard navigation, use the up/down arrow keys to select an answer. a b с d e the perturbation Ĥ₁ p4 8m²c³ both and commute with the perturbation Ĥ₁ the perturbation H₁ = only affects [= 0 states which are not degenerate. the unperturbed Hamiltonian already includes spin-orbit splitting, which lifts all the degeneracies. pª 8m²c³ p4 8m²c³ does not depend on spin or involve 1. there is a subtle symmetry for the central potential V(r) = Ze²/4πor when n = 1.