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  • In the given figure, the energy levels of hydrogen atom have been shown along with some transitions marked A, B, C, D and E, The transition A, B and C respectively represent: <img alt="" src="https://cdn.entrance360.com/media/uploads/2021/03/04/116812.

In the given figure, the energy levels of hydrogen atom have been shown along with some transitions marked A, B, C, D and E, The transition A, B and C respectively represent:
Option: 1 The series limit of Lyman series, second member of Balmer series and second member of Paschen series.
Option: 2 The series limit of Lyman series, second member of Balmer series and second member of Paschen series.
Option: 3 The ionization potential of hydrogen, second member of Balmer series and third member of Paschen series.
Option: 4 The first member of the Lyman series, third member of Balmer series and second member of Paschen series.

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\begin{array}{l} \text { Lyman series: } \frac{1}{\lambda}=R\left(\frac{1}{1^{2}}-\frac{1}{n^{2}}\right), n=2,3,4, \ldots \\ \\ \text { Paschen series: } \frac{1}{\lambda}=R\left(\frac{1}{3^{2}}-\frac{1}{n^{2}}\right), n=4,5,6, \ldots \\ \\ \text { Brackett series: } \frac{1}{\lambda}=R\left(\frac{1}{4^{2}}-\frac{1}{n^{2}}\right), n=5,6,7, \ldots \\ \\ \text { Pfund series: } \frac{1}{\lambda}=R\left(\frac{1}{5^{2}}-\frac{1}{n^{2}}\right), n=6,7,8 \end{array}

If the transition is from n=\infty to lowest value of n for any series, then it is called as series limit of that series.

\\ \mathrm{A} \rightarrow Series limit of Lymen series. \\ \mathrm{B} \rightarrow Third member of Balmer series.\\ \mathrm{C} \rightarrow Second member of Paschen series.

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