Given below are two statements: one is labelled as Assertion A and… | JEE Main 2025 (3 Apr, Shift 2)

Q32JEE Main 2025 · 3 APR · SHIFT 2Easy

Bohr Model: Orbits, Speed & Angular Momentum

Given below are two statements: one is labelled as $\textbf{Assertion A}$ and the other is labelled as Reason $\textbf{R}$

Assertion A: The Bohr model is applicable to hydrogen and hydrogen-like atoms only. Reason $\textbf{R}$ : The formulation of Bohr model does not include repulsive force between electrons. In the light of the above statements, choose the correct answer from the options given below

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Answer: (b)

A: true, Bohr's model works only for one-electron systems (H, He $^+$ , Li $^{2+}$ ...).
R: true, it considers only electron-nucleus attraction and ignores electron-electron repulsion.
That omission is exactly why it fails for many-electron atoms, so R explains A.
So the answer is (b).

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Bohr Model: Orbits, Speed & Angular Momentum question from JEE Main 2025 (3 Apr, Shift 2)

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