In accordance with the Bohr's model find the quantum number that characterizes the earth revolution around the sun in an earth orbit of radius $1.5 \times 10^{11}\;m$ with orbital speed $3 \times 10^4 \;ms^{-1}$

Question

$\begin{array}{1 1} 2.57 \times 10^{-74} \\ 2.57 \times 10^{74} \\ 25.7 \times 10^{74} \\ 25.7 \times 10^{-74}\end{array}$