Gravitation Tes...

A geostationary satellite is orbiting the earth at a height of 5R above that surface of the earth, R being the radius of the earth. The time period of another satellite in hours at a height of 2R from the surface of the earth is

The figure shows elliptical orbit of a planet m about the sun S. The shaded area SCD is twice the shaded area SAB. If t₁, is the time for the planet to move from C andD and t₂ is the time to move from A to B then

The period of a satellite in a circular orbit of radius R is T, the period of another satellite in a circular orbit of radius 4R is

If a body describes a circular motion under inverse square field, the time taken to complete one revolution T is related to the radius of the circular orbit as

A body is acted upon by a force towards a point. The magnitude of the force is inversely proportional to the square of the distance. The path of body will be

Kepler\'s second law regarding constancy of aerial velocity of a planet is a consequence of the law of conservation of

A satellite of mass m is circulating around the earth with constant angular velocity. If radius of the orbit is R₀ and mass of the earth M, the angular momentum about the centre of the earth is

According to Kepler, the period of revolution of a planet (7) and its mean distance from the sun (r) are related by the equation

The condition for a uniform spherical mass m of radius r to be a black hole is [G = Gravitational constant and g =Acceleration due to gravity]

A body revolved around the sun 27 times faster than the earth. What is the ratio of their radii?