Gravitation questions
1239 published questions with worked solutions.
- The radius in kilometer to which the persent radius of earth (R = 6400 km) to be compressed so that the escape velocity is...
- If the angular velocity of earth's spin is increased such that the bodies at the equator start floating, the duration of the day...
- The angular momentum of a planet of mass M moving around the sun in an elliptical orbit is L . The magnitude of the areal...
- The time period of a satellite in a circular orbit of radius R is T. The period of another satellite in a circular orbit of...
- A satellite is launched into a circular orbit of radius R around earth, while a second satellite is launched into a circular...
- Consider a binary star system of star A and star B with masses m_A and m_B revolving in a circular orbit of radii r_A and r_B,...
- A body is projected vertically upwards from the surface of earth with a velocity sufficient enough to carry it to infinity. The...
- A body weighs 49 N on a spring balance at the north pole. What will be its weight recorded on the same weighing machine, if it is...
- Four identical particles of equal masses 1kg made to move along the circumference of a circle of radius 1 m under the action of...
- Imagine a new planet having the same density as that of earth but it is 3 times bigger than the earth in size. If the...
- For a satellite moving in an orbit around the earth, the ratio of kinetic energy to potential energy is :
- The planet Mars has two moons, if one of them has a period 7 hours, 30 minutes and an orbital radius of 9.0 10^3km. Find the mass...
- A mass of 50 kg is placed at the centre of a uniform spherical shell of mass 100 kg and radius 50 m. If the gravitational...
- The masses and radii of the earth and moon are (M_1, R_1) and (M_2, R_2) respectively. Their centres are at a distance 'r' apart....
- The initial velocity v_i required to project a body vertically upward from the surface of the earth to reach a height of 10R,...
- Given below are two statement : one is labelled as Assertion A and the other is labelled as Reason R. Assertion A : The escape...
- The minimum and maximum distances of a planet revolving around the Sun are x_1 and x_2. If the minimum speed of the planet on its...
- Inside a uniform spherical shell : (a) the gravitational field is zero (b) the gravitational potential is zero (c) the...
- A planet revolving in elliptical orbit has : (A) a constant velocity of revolution. (B) has the least velocity when it is nearest...
- The approximate height from the surface of earth at which the weight of the body becomes 1/3 of its weight on the surface of...
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