JEE Main 2025 — Atomic Physics Question with Solution
JEE Main 2025 (4 Apr Shift 1)
Question
Considering the Bohr model of hydrogen like atoms, the ratio of the ratio of the radius orbit of the electron in and is
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Show full solutionCorrect option: D
Correct answer
D
Step-by-step explanation
for
for
$\begin{aligned}
& \mathrm{r}_5=\mathrm{r} \cdot \frac{25}{2} \\ & \therefore \frac{\mathrm{r}_{\mathrm{Li}^{2+}}}{\mathrm{r}_{\mathrm{He}^{+}}}=\frac{2}{3}
\end{aligned}$
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This is a previous-year question from JEE Main 2025, covering the Atomic Physics chapter of Physics. PrepSharp catalogues every PYQ from JEE Main with a verified answer key and step-by-step solution prepared by IIT alumni — so you can search by chapter, topic or year and revise efficiently.