Question

The energy levels of the hydrogen spectrum is shown in figure. There are some transitions A, B, C, D and E. Transition A, B and C respectively represent.

• A. First member of Lyman series, third spectral line of Balmer series and the second spectral line of Paschen series
• B. Ionization potential of hydrogen, second spectral line of Balmer series and third spectral line of Paschen series
• C. Series limit of Lyman series, third spectral line of Balmer series and second spectral line of Paschen series
• D. Series limit of Lyman series, second spectral line of Balmer series and third spectral line of Paschen series

Answer 1

Answer: (C)

Series limit of Lyman series, third spectral line of Balmer series and second spectral line of Paschen series

Answer 2

Transition A (n = ∞ 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