List of top Physics Questions on Gravitation asked in AP EAPCET

An artificial satellite of mass \(m\) revolves around a planet in a circular orbit of radius \(R\) under the influence of an attractive central force given by \[ F\propto R^{-5/2}. \] How do the orbital velocity \(V\) and time period \(T\) depend on the orbital radius \(R\)?

When a ball is dropped from a height it takes \(t\) sec to reach the ground. If the same experiment is done on a different planet having mass \(100\) times the earth's mass and radius \(10\) times the earth's radius, then the time it will take to cover the same height in the new planet is:

A uniform solid sphere of radius \(R\) produces a gravitational acceleration of \(a_0\) on its surface. The distance of the point from the centre of the sphere where the gravitational acceleration becomes \[ \frac{a_0}{4} \] is