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The acceleration due to gravity at a hei...

The acceleration due to gravity at a height `1/20^(th)` of the radius of the earth above the earth surface is 9 `ms^(- 2)` . Its value at a point at an equal distance below the surface of the earth in `ms^(-2)` is about

A

8.5

B

9.3

C

9.8

D

11.5

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TARGET PUBLICATION-Gravitation-Exercise
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  2. Consider earth to be a homogeneous sphere. Scientist A goes deep down ...

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  3. The acceleration due to gravity at a height 1/20^(th) of the radius of...

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  4. lf change in the value of g at a depth d below the surface of the eart...

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  5. lf the earth of radius R, while rotating with angular velocity ro beco...

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  6. R is the radius of the earth and omega is its angular velocity and gP ...

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  7. What should be the angular speed of earth in radian/second so that a b...

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  8. A body falls freely under gravity. Its speed is v when it has lost an ...

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  9. The maximum vertical distance through which a full dressed astronaut c...

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  10. A body of mass m rises to a height h = R/5 from the surface of the Ear...

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  11. Me is the mass of earth and Mm is the mass of moon (Me=81 Mm). The pot...

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  12. Ve and Vp denote the escape velocities from the earth and another plan...

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  13. Escape velocity of a satellite of the earth at an altitude equal to ra...

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  14. If the earth suddenly contracts so that its radius reduces by 4% with ...

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  15. To have an earth satellite synchronous with the rotation of the earth,...

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  16. The relay satellite transmits the T.V programme continously from one p...

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  17. If a body is released from an artificial satellite then

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  18. The orbital speed of Jupiter is

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  19. The critical velocity of a satellite of mass l 00 kg is 20 km/hr. The ...

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  20. The mean radius of the earth is R, its angular speed on its own axis i...

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