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The gravitational force between two obje...

The gravitational force between two objects is proportional to `1//R` (and not as `1//R^(2)`) where `R` is separation between them, then a particle in circular orbit under such a force would have its orbital speed `v` proportional to

A

`1//R^(2)`

B

`R^(@)`

C

`R`

D

`1//R`

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The correct Answer is:
B
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ALLEN -GRAVITATION-EXERCISE 1
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  2. A planet is moving in an elliptic orbit. If T,V,E and L stand, respect...

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  3. The gravitational force between two objects is proportional to 1//R (a...

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  4. What will be velocity of a satellite revolving around the earth at a h...

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  5. Two satellites of masses of m(1) and m(2)(m(1)gtm(2)) are revolving ro...

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  6. Orbital radius of a satellite S of earth is four times that s communic...

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  7. If a satellite is orbiting the earth very close to its surface, then t...

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  8. Two identical satellites are at the heights R and 7R from the earth's ...

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  9. The minimum projection velocity of a body from the earth's surface so ...

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  10. Geostationary satellite :-

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  11. The maximum and minimum distance of a comet form the sun are 8xx10^(12...

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  12. A satellite of mass m goes round the earth along a circular path of ra...

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  13. Near the earth's surface time period of a satellite is 4 hrs. Find its...

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  14. A communication satellite of earth which takes 24 hrs. to complete one...

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  15. Escape velocity for a projectile at earth's surface is V(e). A body is...

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  16. For a satellite moving in an orbit around the earth, ratio of kinetic ...

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  17. The orbital velocity of an satellite in a circular orbit just above th...

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  18. The earth revolves round the sun in one year. If the distance between ...

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  19. A satellite of mass m revolves in a circular orbit of radius R a round...

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  20. A satellite is orbiting earth at a distance r. Variations of its kinet...

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