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JEE Main 2022 (24 Jun, Shift 2) · Energy of the Electron & Energy Levels

Energy of the Electron & Energy Levels question from JEE Main 2022 (24 Jun, Shift 2)

Q29JEE Main 2022 · 24 JUN · SHIFT 2Easy

Energy of the Electron & Energy Levels

In Bohr's atomic model of hydrogen, let K, P and E are the kinetic energy, potential energy and total energy of the electron respectively. Choose the correct option when the electron undergoes transitions to a higher level:

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Answer: (b)

$K = \frac{ke^2}{2r}$ , $P = -\frac{ke^2}{r}$ , $E = -\frac{ke^2}{2r}$ .
In a higher level $r$ is larger: $K$ decreases, while $P$ and $E$ become less negative (increase).
So the answer is (b) K decreases, P and E increase.

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