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lf R is the radius of the earth and g th...

lf R is the radius of the earth and g the acceleration due to gravity on the earth's surface, the mean density of the earth is

A

`4 pi G/3gR`

B

`3 pi R/4gG`

C

`3g/4 pi RG`

D

`pi RG/12g`

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TARGET PUBLICATION-Gravitation-Exercise
  1. The moon's radius is 1/4 that of the earth and its mass is 1 /80 times...

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  2. The gravitational acceleration on the surface of the earth of radius R...

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  3. lf R is the radius of the earth and g the acceleration due to gravity ...

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  4. If the density of the earth is tripled keeping its radius constant, th...

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  5. The diameters of two planets are in the ratio 4 : 1 and their mean den...

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  6. The density of a newly discovered planet is twice that of earth. The a...

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  7. The ratio of acceleration due to gravity at a height 3R above earth's ...

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  8. The value of gravitational acceleration at a height equal to radius of...

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  9. The value of 'g' at a certain height h above the free surface of Earth...

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  10. At any point within the interior of earth, the acceleration due to gra...

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  11. If the earth were assumed to have uniform density and spherical symmet...

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  12. If a body of mass 10 kg is taken to the centre of the earth, its weigh...

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  13. The acceleration due to gravity on the surface of earth varies

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  14. If the earth were to stop rotating, the value of acceleration due to g...

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  15. Considering earth's rotation, the value of g at the earth's surface is

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  16. The acceleration due to gravity at the equatorial plane is

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  17. If earth's satellite is moved from one stable orbit to a farther stabl...

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  18. Energy required to move a body of mass m from an orbit of radius 2R to...

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  19. The gravitational potential energy per unit mass at a point gives at ...

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  20. Dimensional formula of gravitational potential is

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