Physics · 2022
JEE Main · 25 June 2022, Shift 1 · Q46
The ratio for the speed of the electron in the 3^rd orbit of He^+ to the speed of the electron in the 3^rd orbit of hydrogen atom will be:
The ratio for the speed of the electron in the $\displaystyle 3^{\text {rd }}$ orbit of $\displaystyle \mathrm{He}^{+}$to the speed of the electron in the $\displaystyle 3^{\text {rd }}$ orbit of hydrogen atom will be :
Official answer
(4)
$\displaystyle 2: 1$
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JEE Main 2022 Physics question, with the answer from NTA’s final answer key. Where our answers come from.