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MCQMediumJEE Main 2025 · 22 January, Shift 2Bohr's Model & Hydrogen Spectrum

Physics Question from JEE Main 2025 · 22 January, Shift 2

An electron projected perpendicular to a uniform magnetic field BB moves in a circle. If Bohr’s quantization is applicable, then the radius of the electronic orbit in the first excited state is:

  • A

    2hπeB\sqrt\frac{2h}{{\pi e B}}

  • B

    4hπeB\sqrt\frac{4h}{{\pi e B}}

  • C

    hπeB\sqrt\frac{h}{{\pi e B}}

  • D

    h2πeB\sqrt \frac{h}{{2\pi e B}}

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