Inm the figure, energy levels of hydrogen atom have been shown along with some transitions marked A, B, C and D. The transitions A, B, C, respectively respresent

Options

A. The first member of Lymen series, third member of Balmer series and second member of Paschen series
B. The ionisation potential of H, second member of Balmer series and third member of Paschen series
C. The series limit of Lyman series, second member of Balmer series and third member of Paschen series
D. The series limit of Lymen series, third member of Balmer series and second member of Pashen series

Answer

A

Explanation

Transition `A(n=oo," to " 1)` series limit of Lyman series
Transition B (n=5 to n=2) third spectral line of Balmer series.
Transition C (n=5 to n=3) second spectral line of paschen series.