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Assume that earth is a spherical planet ...

Assume that earth is a spherical planet of uniform density `rho`, radius `R_e`, mass `M_e` and acceleration due to gravity g. Then the gravitational constant G can be written as
(a)`(3g)/(4pirhoR_e)` ,(b)`(gR_e^2)/M_e` , (c) `(3g)/(4pirhoR_e^2)` , (d)`(12g)/(4pirhoR_e)`

A

only a & b are true

B

only b & c are true

C

only a, b & d are true

D

only a & d are true

Text Solution

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The correct Answer is:
A
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AAKASH SERIES-GRAVITATION-Exercise-I
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  11. For a planet moving around the sun in an elliptical orbit, which of th...

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  12. If a satellite orbits as close to the earth.s surface as possible, (...

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  13. For a satellite to orbit around the earth, which of the following must...

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  16. A small mass m is moved slowly from the surface of the earth to a heig...

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  17. A solid sphere of uniform density and radius 4 units is located with i...

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  18. Let V and E be the gravitational potential and gravitational field at ...

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  19. Let V and E represent the gravitational potential and field at a dista...

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  20. Take the effect of bulging of earth and its rotation is account . Cons...

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