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An electron projected perpendicular to a uniform magnetic field B moves in a circle. If Bohr's quantization is applicabl…

Q1

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 :

[JEE Main 2025, 22 Jan (Shift 2)]

a

\(\sqrt{\frac{h}{2\pi eB}}\)

b

\(\sqrt{\frac{\mathrm{h}}{\pi \mathrm{eB}}}\)

c

\(\sqrt{\frac{2h}{\pi eB}}\)

d

\(\sqrt{\frac{4\mathrm{h}}{\pi \mathrm{eB}}}\)

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