Q17. a perturbation vper =al is added to the hydrogen atom potential. the shift in the energy level of the 2p state, when the effects of spin are neglected up t

Q17. A perturbation Vper =al is added to the Hydrogen atom potential. The shift in the energy level of the 2P state, when the effects of spin are neglected up to second order in a, IS (a) (b) 2ah +a'h (c) 2ah2 (d) ah+an 0