Physics · 2025
JEE Main · 22 January 2025, Shift 2 · Q44
An electron projected perpendicular to a uniform magnetic field B moves in a circle. If Bohr's quantization is applicable, then the radius of the…
An electron projected perpendicular to a uniform magnetic field B moves in a circle. If Bohr's quantization is applicable, then the radius of the electronic orbit in the first excited state is :
Official answer
From NTA’s final answer key for this paper.
(1)
$\displaystyle \sqrt{\frac{h}{\pi \mathrm{eB}}}$
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JEE Main 2025 Physics question, with the answer from NTA’s final answer key. Where our answers come from.