Appeared in: 2024 (2 sets)
The radius $(r_n)$ of $n^{th}$ orbit in Bohr model of hydrogen atom varies with n as
(A) $r_n \propto n$
(B) $r_n \propto \frac{1}{n}$
(C) $r_n \propto n^2$
(D) $r_n \propto \frac{1}{n^2}$
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Official Evaluation Steps & EL10 Insight
Step 1 (Formula / Governing Law & Given Data): [½ Mark]