Q212 / 225 · JEE Main 2003 · Physics

If the binding energy of the electron in a hydrogen atom is $13.6 \mathrm{eV}$, the energy required to remove the electron from the first excited state of $\mathrm{Li}^{++}$is

A
$30.6 \mathrm{eV}$
Correct answer
B
$13.6 \mathrm{eV}$
C
$3.4 \mathrm{eV}$
D
$122.4 \mathrm{eV}$

Hence, the correct answer is option: 'B'.

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