Gravitation Tes...

The time period of a satellite of earth is 5 hr. If the separation between the earth and the satellite is increased to four times the previous value, the new time period will become

To an astronaut in a spaceship, the sky appears

A geostationary satellite is revolving around the earth. To make it escape from gravitational field of earth, is velocity must be increased

Venus looks brighter than other planets because

The orbital speed of Jupiter is

According to Kepler, the period of revolution of a planet (T) and its mean distance from the sun (r) are related by the equation

A satellite A of mass m is at a distance of r from the centre of the earth. Another satellite B of mass 2m is at a distance of 2r from the earth\'s centre. Their time periods are in the ratio of

The period of revolution of planet A around the sun is 8 times that of B. The distance of A from the sun is how many times greater than that of B from the sun?

Planetary system in the solar system describes

If mass of a satellite is doubled and time period remain constant the ratio of orbit in the two cases will be