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NEET 2007 (AIPMT) · Energy of the Electron & Energy Levels

Energy of the Electron & Energy Levels question from NEET 2007 (AIPMT)

Q50NEET 2007 · AIPMTEasy

Energy of the Electron & Energy Levels

The total energy of electron in the ground state of hydrogen atom is $-$ 13.6 eV. The kinetic energy of an electron in the first excited state is

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Answer: (d)

First excited state is $n = 2$ : $E_2 = -\frac{13.6}{4} = -3.4\text{ eV}$ .
$KE = -E_2 = 3.4\text{ eV}$
So the answer is (d) 3.4 eV.

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