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The escape velocity of a body from the s...

The escape velocity of a body from the surface of the earth is equal to

A

3 times critical velocity of body orbiting close to surface of the earth.

B

`sqrt2` times critical velocity of a body orbiting very close to surface of the earth.

C

critical velocity of a body orbiting very close to surface of the earth.

D

`1/2` times critical velocity of a body orbiting very close to surface of the earth.

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TARGET PUBLICATION-Gravitation-Exercise
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  3. The escape velocity of a body from the surface of the earth is equal t...

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  4. If the gravitational force were proportional to 1/r, then a particle i...

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  5. Two satellite of masses m1 and m2 (m1 gt m2) are revolving round the e...

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  6. Two satellite fo masses m and 4m orbit the earth in circular orbits of...

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  7. The satellites A and B go round a planet P in circular orbits having r...

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  8. An astronaut inside a satellite is in a state of weightlessness becaus...

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  9. Assertion: An astronaut in an orbiting space station above the Earth e...

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  10. A person sitting in a chair in a satellite feels weightless because

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  11. The time period of an earth satellite in circular orbit depends on

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  12. The period of a satellite in a circular orbit around a planet is indep...

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  13. In the case of a satellite moving along a circular orbit, a larger orb...

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  14. Satellite revolving around the earth loses some energy due to collisio...

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  15. B .E. of a satellite is always

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  16. The binding energy of a body does not depend upon

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  17. A satellite is orbiting very close to a planet. Its periodic time depe...

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  18. If T is the time period of revolution of a satellite, then K.E. is pro...

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  19. A geostationary satellite orbits around the~ earth in a circular orbit...

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  20. The rotational period of a satellite close to the surface of the earth...

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