Chapter 12 – Gravitation

Average distance of the Earth from the Sun is L1​. If one year of the Earth is equal to D days, one year of another planet whose average distance from the Sun is L2​ will be: Average distance of the Earth from the Sun is L1​. If one year of the Earth is equal to [...]

A satellite is revolving around the earth with a kinetic energy E. The minimum addition of kinetic energy needed to make it escape from its orbit is A satellite is revolving around the earth with a kinetic energy E. The minimum addition of kinetic energy needed to make it escape from its orbit is September [...]

Gravitational potential of the body of mass m at a height h from surface of earth of radius R is (Take g= acceleration due to gravity at earth’s surface) Gravitational potential of the body of mass m at a height h from surface of earth of radius R is (Take g= acceleration due to gravity [...]

Find out the correct relation for the dependance of change in acceleration due to gravity on the angle at the latitude due to rotation of earth ? Find out the correct relation for the dependance of change in acceleration due to gravity on the angle at the latitude due to rotation of earth ? September [...]

A particle is thrown vertically upwards with velocity 11.2kms^−1 from the surface of earth. Calculate its velocity at height 3R, where R is the radius of earth. A particle is thrown vertically upwards with velocity 11.2kms^−1 from the surface of earth. Calculate its velocity at height 3R where R is the radius of earth. September [...]

The condition for a uniform spherical mass M of radius r to be a black hole is (G= gravitational constant, g= acceleration due to gravity ). g= acceleration due to gravity ). The condition for a uniform spherical mass M of radius r to be a black hole is (G= gravitational constant September 12, 2020 [...]

A body weighed 250 N on the surface assuming the earth to be a sphere of uniform mass density. how much would it weigh half way down to the centre of the earth? A body weighed 250 N on the surface assuming the earth to be a sphere of uniform mass density. how much would [...]

Assertion: Total energy is conserved in moving a satellite to higher orbit. Reason : sun of change in PE and KE is same in magnitude and opposite in nature Assertion: Total energy is conserved in moving a satellite to higher orbit. Reason : sun of change in PE and KE is same in magnitude and [...]

Assertion: Angular speed of a planet around the sun increases, when it is closer to the sun. Reason: Total angular momentum of the system remains constant. Assertion: Angular speed of a planet around the sun increases when it is closer to the sun. Reason: Total angular momentum of the system remains constant. September 12, 2020 [...]

Assertion : A man in a closed cabin which is falling freely does not experience gravity. Reason : Inertial and gravitational mass have equivalence. Assertion : A man in a closed cabin which is falling freely does not experience gravity. Reason : Inertial and gravitational mass have equivalence. September 12, 2020 Category: AIIMS Last 24 [...]