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The orbital velocity of an artifical sat...

The orbital velocity of an artifical satellite in a cirular orbit above the earth's surface at a distance equal to radiu of earth is v. For a satellite orbiting at an altitude half of earth's radius, orbital velocity is

A

`3/2V`

B

`sqrt(3/2)V`

C

`sqrt(2/3)V`

D

`2/3 V`

Text Solution

Verified by Experts

The correct Answer is:
A
As `v=sqrt(GM)/(R )` and `V=sqrt(GM)/(R+R//2)=sqrt(2GM)/(3R)=sqrt(2/3)v`
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MHTCET PREVIOUS YEAR PAPERS AND PRACTICE PAPERS-GRAVITATION -Exercise 1
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  2. The earth (mass =6xx10^(24)kg) revolves round the sun with an angular ...

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  3. The orbital velocity of an artifical satellite in a cirular orbit abov...

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  4. If total enrgy of satellite is E what is its potential enrgy

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  5. A relay satellite transmits the television programme from one part of ...

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  6. By what percent the energy of the satellite has to be increased to shi...

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  7. A satellite moves around the earth in a circular orbit with speed v. I...

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  8. The field which artifical satellite are useful stelites are useful f...

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  9. A lauching vehicle carrying an artificial satellite of mass m is set f...

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  10. A body is orbiting around earth at a mean radius which is two times a...

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  11. The time period of an earth satellite in circular orbit is independent...

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  12. The radius of the orbit of a satellite is r and its kinetic energy i...

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  13. The pitentil energy of a satellite is given as PE= lambda(KE) whe...

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  14. A 400 kg satellite is in a circular orbit of radius 2 R(E) about ...

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  15. The time period of a geostationary satellite at a height 36000 km ...

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  16. A simple pendulum has a time period T(1) on the earth 's surface ...

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  17. The mass of a planet is six times that of the earth. The radius of the...

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  18. For a body to escape from earth, angle from horizontal at which it sho...

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  19. The escape velocity form the earth is 11 kms^(-1) the esacpe veloc...

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  20. The ratio of the radii of the planets P(1) and P(2) is a the ratio ...

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