Question

1.In a hydrogen atom, if the energy of electron in the
ground state is - eV., then that in the 2nd excited
state of He is
(1) -x eV
(2) -4/9xev
(3) +2x eV
(4) -9/4xev​

Answer 1

Answer:

correct answer is 2 if u see this that is 2

Answer 2

Answer:

2 is the answer

I hope it helps you