MCQ
Bohr magneton is given by (symbols have their usual meanings)
- A$\frac{4 \pi m_e}{e h^2}$
- B$\frac{4 \pi m_e}{e h}$
- C$\frac{e h^2}{4 \pi m_e}$
- ✓$\frac{e h}{4 \pi m_e}$
$B_m=\frac{e h}{4 \pi m}$
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