Gravitation questions
1239 published questions with worked solutions.
- An artificial satellite is moving in a circular orbit around the earth with a speed equal to half the magnitude of escape...
- Two satellites of mass m and 9m are orbiting a planet in an orbit of radius R. Their periods of revolution will be in the ratio of
- A satellite moves in an elliptical orbit about a planet. The maximum and minimum velocities of the satellite are 3 10^4 ms ^ -1...
- A person sitting on a chair in a satellite feels weightless because **[UP SEE 2004]**
- If is the density of the planet, the time period of a nearby satellite is given by
- A geostationary satellite is orbiting the earth at a height 6R above the surface of the earth, R being the radius of earth. What...
- The orbit of a geostationary satellite is circular; the time period of the satellite depends on (i) mass of the satellite (ii)...
- A planet of mass m moves around the sun of mass M in an elliptical orbit. The maximum and minimum distance of the planet from the...
- A satellite of mass m revolves around the earth of radius R at a height x from its surface. If g is the acceleration due to...
- A satellite moves in a circle around the earth. The radius of this circle is equal to one-half of the radius of the moon's orbit....
- In an elliptical orbit under gravitational force, in general **[UP SEE 2004]**
- A satellite is launched into a circular orbit of radius R around the earth. A second satellite is launched into an orbit of...
- If a planet of given density were made larger, its force of attraction for an object on its surface would increase because of the...
- The gravitational attraction between two bodies increases when their masses are
- A spherical hollow is made in a lead sphere of radius R such that its surface touches the outside surface of the lead sphere and...
- If the moon is suddenly stopped and then released (given the radius of the moon is one-fourth that of earth and the acceleration...
- The mass of the moon is 1/8 of the earth but the gravitational pull is 1/6 of the earth. It is due to the fact that
- If different planets have the same density but different radii, then the acceleration due to gravity on the surface of the planet...
- The speed of earth's rotation about its axis is . Its speed is increased to x times to make the effective acceleration due to...
- The ratio of acceleration due to gravity at a height h above the surface of the earth and at a depth h below the surface of the...
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