Q 11-07-112JEE MainJEE Main 2023 (10 Apr, Shift 1)Easy
Two satellites of masses $m$ and $3m$ revolve around the earth in circular orbits of radii $r$ and $3r$ respectively. The ratio of orbital speeds of the satellites respectively is
Answer: (A) $\sqrt3:1$
$v=\sqrt{\dfrac{GM}{r}}$, independent of the satellite's mass: $\dfrac{v_1}{v_2}=\sqrt{\dfrac{3r}{r}}=\sqrt3$.
Solution by Sreeraj P, M.Sc Physics