Gravitation questions
1239 published questions with worked solutions.
- The distance between the centre of the earth and the moon is 384000 km. If the mass of the earth is 6 10^ 24 kg and G=6.66 10^...
- If g 1 R^3 (instead of 1 R^2 ), then the relation between the time period of a satellite near the earth's surface and the radius...
- Which one of the following statements regarding an artificial satellite of the earth is incorrect? [NDA 1995, MP PMT 2000]
- A satellite of mass m is orbiting close to the surface of the earth (radius R=6400 km) and has kinetic energy K. The...
- A small satellite is revolving near the earth's surface. Its orbital velocity will be nearly [CPMT 1987, JIPMER 2001, Orissa JEE...
- A geostationary satellite [CPMT 1990]
- A projectile is projected with velocity kv_e in the vertically upward direction from the ground into space (v_e is escape...
- Two planets have mean distances d_1 and d_2 from the sun, and their frequencies of revolution are n_1 and n_2 respectively. Then...
- A body is acted upon by a force directed towards a fixed point, whose magnitude is inversely proportional to the square of the...
- The period of the moon's rotation around the earth is nearly 29 days. If the moon's mass were 2 times its present value and all...
- A satellite of mass m is circulating around the earth with constant angular velocity. If the radius of the orbit is R_0 and the...
- The radius of the orbit of a planet is two times that of the earth. The time period of the planet is [BHU 2003, CPMT 2004, RPMT...
- Kepler discovered [DCE 2000]
- If the mass of a satellite is doubled and its time period remains constant, the ratio of the orbital radius in the two cases will...
- If a body describes a circular motion under an inverse-square field, the time taken to complete one revolution, T, is related to...
- The mass of a planet that has a moon, whose time period and orbital radius are T and R respectively, can be written as [AMU 1995]
- The maximum and minimum distances of a comet from the sun are 8 10^ 12 m and 1.6 10^ 12 m. If its velocity when nearest to the...
- Kepler's second law regarding the constancy of the areal velocity of a planet is a consequence of the law of conservation of...
- A satellite A of mass m is at a distance r from the centre of the earth. Another satellite B of mass 2m is at a distance 2r from...
- Suppose the law of gravitational attraction suddenly changes and becomes an inverse-cube law, i.e. F 1/r^3, but still remains a...
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