Physics - Gravitation Question with Solution | TestHub

The correct option is (D). Considering force balance in the orbit: $\frac{\mathrm{GMm}}{{\mathrm{r}}^2}=\frac{{\mathrm{mv}}^2}{\mathrm{r}}$ Gravitational force balances the centrifugal force. The orbital velocity can be obtained as: $v=\sqrt{\frac{GM}{r}}$ Therefore, angular momentum is equal to, $\mathrm{L}=\mathrm{mvr}=\sqrt{{\mathrm{GMm}}^2\mathrm{r}}$