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# Which of the following is the energy of a possible excited state of a possible excited state of hydrogen?

$\begin{array}{1 1}(a)\;+13.6 \;eV\\(b)\;-6.89\;eV\\(c)\;-3.4\;eV\\(d)\;+6.8\;eV\end{array}$

$E=-13.6\frac{Z^2}{n^2}eV$
$n=2(First \;Excited\; state)\Rightarrow E=3.4 eV$