In accordance with Bohr's model,find the quantum number that characterizes the Earth's revolution around the Sun in an orbit of radius $1.5 \times 10^{11} \; m$ with an orbital speed of $3 \times 10^{4} \; m/s$. (Mass of Earth $= 6.0 \times 10^{24} \; kg$)

  • A
    $7.3 \times 10^{69}$
  • B
    $8.6 \times 10^{79}$
  • C
    $6.4 \times 10^{54}$
  • D
    $2.6 \times 10^{74}$

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