1.

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 [CPMT 1986, 88]

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


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