Chapter 12 – Gravitation

The acceleration due to gravity at a height 1 km above the earth is the same as at a depth d below the surface of earth. Then. The acceleration due to gravity at a height 1 km above the earth is the same as at a depth d below the surface of earth. Then. August [...]

A satellite of mass m is orbiting around the earth in a circular orbit with a velocity v. What will be its total energy ? A satellite of mass m is orbiting around the earth in a circular orbit with a velocity v. What will be its total energy ? August 25, 2020 Category: Chapter [...]

A ball is dropped from a satellite revolving around the earth at height of 120 km. The ball will A ball is dropped from a satellite revolving around the earth at height of 120 km. The ball will August 25, 2020 Category: Chapter 12 - Gravitation , NEET Last 32 Years Solved 1988 - 2019 [...]

A planet is moving in an elliptical orbit. If T,V,E and L stand for its kinetic energy, potential energy, total energy and the magnitude of the angular momentum of the planet then the true statement out of the following is: A planet is moving in an elliptical orbit. If T E and L stand for [...]

A body attains a height equal to the radius of the earth when projected from earth’ surface. The velocity of the body with which it was projected is. A body attains a height equal to the radius of the earth when projected from earth' surface. The velocity of the body with which it was projected [...]

A body of mass m is placed on earth’s surface which is taken from earth surface to a height of h=3 R, then change in gravitational potential energy is: A body of mass m is placed on earth's surface which is taken from earth surface to a height of h=3 R then change in gravitational [...]

If the gravitational force between two objects were proportional to R1​ (and not as R21​) where R is separation between them, then a particle in circular orbit under such a force would have its orbital speed v proportional to If the gravitational force between two objects were proportional to R1​ (and not as R21​) where [...]

Two spheres of masses m and M are situated in air and the gravitational force between them is F. The space around the masses is now filled with a liquid of specific gravity 3. The gravitational force will now be The largest and the shortest distance of the earth from the sun are r1​ and [...]

The largest and the shortest distance of the earth from the sun are r1​ and r2​. Its distance from the sun when it is at perpendicular to the major-axis of the orbit drawn from the sun is: The largest and the shortest distance of the earth from the sun are r1​ and r2​. Its distance [...]

The distance of two planets from the sun are 10^13 and 10^12 m, respectively. The ratio of time periods of these two planets is respectively. The ratio of time periods of these two planets is The distance of two planets from the sun are 10^13 and 10^12 m August 25, 2020 Category: Chapter 12 - [...]