In a hydrogen atom,an electron revolves around the nucleus at a frequency of $6.6 \times 10^{15} \, \text{rev/sec}$ in an orbit of radius $0.528 \, \mathring{A}$. The magnetic moment in $\text{A} \cdot \text{m}^2$ is:

  • A
    $1 \times 10^{-15}$
  • B
    $1 \times 10^{-10}$
  • C
    $1 \times 10^{-23}$
  • D
    $1 \times 10^{-27}$

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