The first Lyman transition in the hydrogen spectrum has \( \Delta \...

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The first Lyman transition in the hydrogen spectrum has \( \Delta \mathrm{E}=10.2 \mathrm{eV} \). The same energy change is observed in the second Balmer transition of :-
(1) \( \mathrm{Li}^{2+} \)
(2) \( \mathrm{Li}^{+} \)
(3) \( \mathrm{He}^{+} \)
(4) \( \mathrm{Be}^{3-} \)
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