Gravitation questions
1239 published questions with worked solutions.
- Which of the following astronomers first proposed that the sun is static and the earth revolves round the sun? [AFMC 2002]
- The ratio of the distances of two planets from the sun is 1.38. The ratio of their periods of revolution around the sun is
- In planetary motion, the areal velocity of the position vector of a planet depends on the angular velocity ( ) and the distance...
- The orbital speed of Jupiter is [MNR 1986, UPSEAT 2000]
- A body revolved around the sun 27 times faster than the earth. What is the ratio of their radii?
- Two bodies of masses m_1 and m_2 are initially at rest at infinite separation. They are then allowed to move towards each other...
- Angular momentum of the earth around the sun is proportional to
- The distances of Neptune and Saturn from the sun are nearly 10^ 13 m and 10^ 12 m respectively. Assuming that they move in...
- The condition for a uniform spherical mass m of radius r to be a black hole is [G = gravitational constant and g = acceleration...
- The orbital angular momentum of a satellite revolving at a distance r from the centre is L. If the distance is increased to 16r,...
- The radius and mass of the earth are increased by 0.5 %. Which of the following statements are true at the surface of the earth?...
- Two spherical planets P and Q have the same uniform density , masses M_P and M_Q, and surface areas A and 4A respectively. A...
- Assertion: Gravitational potential of the earth at every place on it is negative. Reason: Every body on earth is bound by the...
- Assertion: We cannot move even a finger without disturbing all the stars. Reason: Every body in this universe attracts every...
- Assertion: The difference in the value of acceleration due to gravity at the pole and the equator is proportional to the square...
- Assertion: Two different planets have the same escape velocity. Reason: The value of escape velocity is a universal constant.
- Assertion: There is no effect of the rotation of the earth on the acceleration due to gravity at the poles. Reason: Rotation of...
- Assertion: Space rockets are usually launched in the equatorial line from west to east. Reason: The acceleration due to gravity...
- Assertion: For a mass M kept at the centre of a cube of side a, the flux of the gravitational field passing through its sides is...
- Assertion: The time period of a geostationary satellite is 24 hours. Reason: A geostationary satellite must have the same time...
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