Chemistry - Atomic Structure Question with Solution | TestHub

Paragraph for Q.8 to Q.9

A hydrogen-like species is present in a sample in which all atoms/ions are in excited levels A or B only, with principal quantum numbers $n_1$ and $n_2$ ($E_{n_2}>E_{n_1}$), and none in any other level. On returning to the ground state the sample emits a total of 10 different lines, of which 3 lines are due to transitions between the levels $n_1$ and $n_2$ only. The energy difference $E_{n_2}-E_{n_1}$ is 8.70 eV. (Take the ground-state energy of hydrogen as -13.6 eV.)