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One projectile after deviating from itsp...

One projectile after deviating from itspath starts movnig round the earth in a circular path of radius equal to nine times the radius of earth R.

A

`2 pi sqrt(R/g)`

B

`27xx2pi sqrt(R/g)`

C

`pi sqrt(R/g)`

D

`0.8xx3pi sqrt(R/g)`

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The correct Answer is:
B
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ALLEN-GRAVITATION-EXERCISE 1
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  2. Kepler's second law is a consequence of

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  3. One projectile after deviating from itspath starts movnig round the ea...

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  4. In adjoining figure earth goes around the sun in eliptical orbit on wh...

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  5. Potential energy and kinetic energy of a two particle system under Ima...

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  6. A satellite of earth of mass 'm' is taken from orbital radius 2R to 3R...

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  7. If a graph is plotted between T^(2) and r^(3) for a planet, then its s...

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  8. A planet is revolving around the sun. its distance from the sun at apo...

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  9. A satellite launching station should be

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  10. A satellite is launched into a circular orbit close to the earth's sur...

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  11. The satellite of mass m is orbitating around the earth in a circular o...

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  12. If the length of the day is T, the height of that TV satellite above t...

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  13. If two bodies of mass M and m are revolving around the centre of mass ...

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  14. Two satellites of same mass m are revolving round of earth (mass M) in...

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  15. A planet of mass m is moving in an elliptical orbit about the sun (mas...

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  16. The relay satellite transmits the television signals continuous...

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  17. If the satellite is stopped suddenly in its orbit which is at a distna...

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  18. A planet is moving in an elliptical orbit around the sun. If T,U,E an...

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  19. If the gravitational force between two objects were proportional to (1...

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

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