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What is meant by gravitational potential...

What is meant by gravitational potential energy of a body ? Derive an expression for the gravitational potential energy for a body of mass m lying at a distance r from the centre of Earth.

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MODERN PUBLICATION-GRAVITATION-Revision Exercises (Short answer type question)
  1. State and explain Newton's law of gravitation. Also mention the dimens...

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  2. Derive an expression for the variation of g with the height from the s...

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  3. At what depth from the surface of the earth, the acceleration due to g...

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  4. What do you understand by 'g'. Discuss the variation of g with rotatio...

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  5. What would happen if gravity suddenly disappears?

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  6. Does earth imparts equal acceleration to all bodies ? If yes why ?

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  7. Why the moon has no atmosphere ?

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  8. What do you mean by intensity of gravitational field and gravitational...

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  9. Derive an expression for the electric field intensity at a point outsi...

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  10. What is meant by gravitational potential energy of a body ? Derive an ...

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  11. PRINCIPLE OF LAUNCHING A SATELLITE

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  12. What do you understand by geostationary and polar satellite ? Discuss ...

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  13. Air friction increases the velocity of the satellite. Explain.

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  14. Define escape velocity of an object.

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  15. Show that the escape velocity of an object from the speeds of two plan...

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  16. What are geostationary satellites? What are the necessary conditions f...

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  17. What do you understand by geostationary and polar satellite ? Discuss ...

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  18. What do you underestand by orbital velocity ? Derive an expression for...

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  19. For a satellite orbiting very close to earth's surface, total energy i...

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  20. What is weightlessness ? What are the problems of weightlessness faced...

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