Previous Year NEET Question- Gravitation L-4

Question: A satellite is orbiting just above the surface of the earth with period $T$. If $d$ is the density of the earth and $G$ is the universal constant of gravitation, the quantity $\frac{3 \pi}{G d}$ represents :#

A) $T^2$

B) $T^3$

C) $\sqrt{T}$

$T$

Answer: $T^2$#