CBSE Class 11 Gravitation — practice questions
4 free MCQs with worked solutions. Tap any question for the answer + explanation, or practice them all in the app.
Practice CBSE Class 11 Gravitation in the app →A planet's semi-major axis is doubled. Its orbital period changes by a factor of approximately:Two coins of unequal mass are dropped from a balcony in vacuum. They reach the floor:Earth's escape speed at the surface is about (taking $g = 9.8$ m/s$^2$, $R = 6.4\times 10^6$ m):A satellite of mass $m$ in a circular orbit of radius $r$ around a planet of mass $M$ has total mechanical ene