Two planets A and B have radius in the ratio 1 : 6. A satellite revolving near the surface of planets have same time period of revolution. The ratio of density of planets A and B is :

The period of a satellite moving in a circular orbit near the surface of a planet is independent of

Two satellites having their masses in the ratio of 4:9 are revolving in orbits of radius R. The ratio of their time periods will be

A satellite of mass m is revolving close to surface of a plant of density d with time period T . The value of universal gravitational constant on planet is given by

The spherical planets have the same mass but densities in the ratio 1: 8 . For these planets the :

If a and b are the nearest and farthest distances of a planet from the sun and the planet is revolving in an elliptical orbit, then square of the time period of revolution of that planets is directly proportional to

The ratio of the distance of two planets from the sun is 1:2 . Then ratio of their priods of revolutions is