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Time period of revolution of polar satel...

Time period of revolution of polar satellite is around

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Time period of revolution of poalr satellite is aroung

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Time period of revolution of a nearest satellite around a planet of radius R is T . Period of revolution around another planet, whose radius is 3R but having same density is

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If a time period of revolution of a satellite around a planet in a circular orbit of radius r is T,then the period of revolution around planet in a circular orbit of radius 3r will be

Assertion: The time period of revolution of a satellite close to surface of earth is smaller then that revolving away from surface of earth. Reason: The square of time period of revolution of a satellite is directely proportioanl to cube of its orbital radius.

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MODERN PUBLICATION-GRAVITATION-Revision Exercises (very short answer questions)
  1. Where is 'g' greater, at poles or at equator ?

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  2. How the value of g changes as one moves from equator to pole?

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  3. How the value of g changes with increase in latitude of a place?

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  4. What is the unit and dimensional formula of gravitaional intensity?

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  5. What is the value of gravitational intensity at the surface of Earth a...

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  6. Define orbital speed of a satellite.

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  7. What is the direction of the orbital speed of a orbiting satellite?

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  8. What is the direction and orbital speed of a geostationary satellite?

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  9. Time period of revolution of polar satellite is around

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  10. What is the escape speed of the Sun ?

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  11. Give two examples of geostationary satellites.

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  12. Why is gravitational potential energy negative?

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  13. Keeping mass constant, if the diameter of the earth becomes twice, the...

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  14. What is the shape of earth at poles?

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  15. The time period of a simple pendulum at the centre of the earth is

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  16. If the earth is rotating fast, how will the value of g change at poles...

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  17. Where will a body weigh more: at the centre of earth or at the surface...

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  18. Does the escape velocity of a body depend on the density of a planet?

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  19. What do you mean by weightlessness?

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  20. The escape velocity for a body of mass 10 kg on a planet P is 11.2 km/...

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