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Energy of the Electron & Energy Levels question from NEET 2019

Q40NEET 2019Easy

Energy of the Electron & Energy Levels

The total energy of an electron in an atom in an orbit is –3.4 eV. Its kinetic and potential energies are, respectively.

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Answer: (a)

In a Bohr orbit $KE = -E$ and $PE = 2E$ .
$KE = 3.4\text{ eV}$ , $PE = 2(-3.4) = -6.8\text{ eV}$
So the answer is (a) 3.4 eV, $-6.8$ eV.

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