Chapter 10 – Gravitation

At what height the gravitational field reduces by 75 % the gravitational field at the surface of earth ? At what height the gravitational field reduces by 75 % the gravitational field at the surface of earth ? September 19, 2020 Category: Arihant Physics by D.C Pandey , Chapter 10 - Gravitation , Volume 1 [...]

A uniform solid sphere of mass M and radius R is surrounded symmetrically by a uniform thin spherical shell of radius 2R and mass m A uniform solid sphere of mass M and radius R is surrounded symmetrically by a uniform thin spherical shell of radius 2R and mass m September 19, 2020 Category: Arihant [...]

A thin rod of length L is bent to form a semi circle. The mass of the rod is M. What will be the gravitational potential at the centre of the circle ? A thin rod of length L is bent to form a semi circle. The mass of the rod is M. What will [...]

For a uniform ring of mass M and radius R at its centre For a uniform ring of mass M and radius R at its centre September 19, 2020 Category: Arihant Physics by D.C Pandey , Chapter 10 - Gravitation , Volume 1 ,

At what depth below the surface of the earth acceleration due to gravity will be half of its value at 1600 km above the surface of the earth ? At what depth below the surface of the earth acceleration due to gravity will be half of its value at 1600 km above the surface of [...]

The angular velocity of rotation of star (of mass M and radius R) at which the matter will start to escaping from its equator is The angular velocity of rotation of star (of mass M and radius R) at which the matter will start to escaping from its equator is September 19, 2020 Category: Arihant [...]

The height above the surface of the earth where acceleration due to gravity is 1/64 of its value at surface of the earth is approximately. The height above the surface of the earth where acceleration due to gravity is 1/64 of its value at surface of the earth is approximately. September 19, 2020 Category: Arihant [...]

A mass M is split into two parts m and (M−m), which are, then separated by a certain distance. What ratio of m/M maximizes the gravitational force between the two parts ? A mass M is split into two parts m and (M−m) then separated by a certain distance. What ratio of m/M maximizes the [...]

If M is the mass of the earth and R its radius, the ratio of the gravitational acceleration and the gravitational constant is If M is the mass of the earth and R its radius the ratio of the gravitational acceleration and the gravitational constant is September 19, 2020 Category: Arihant Physics by D.C Pandey [...]

Suppose a vertical tunnel is dug along the diameter of the earth, assumed to be a sphere of uniform mass density ρ. If a body of mass m is thrown in this tunnel, its acceleration at a distance y from the centre is given by: assumed to be a sphere of uniform mass density ρ. [...]