Physics · 2021
JEE Main · 17 March 2021, Shift 1 · Q20
If an electron is moving in the n^th orbit of the hydrogen atom, then its velocity (v_n ) for the n^th orbit is given as:
If an electron is moving in the $\displaystyle \mathrm{n}^{\text {th }}$ orbit of the hydrogen atom, then its velocity $\displaystyle \left(v_{\mathrm{n}}\right)$ for the $\displaystyle \mathrm{n}^{\text {th }}$ orbit is given as :
Official answer
(4)
$\displaystyle v_{\mathrm{n}} \propto \frac{1}{\mathrm{n}}$
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JEE Main 2021 Physics question, with the answer from NTA’s final answer key. Where our answers come from.