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If the period of revolution of an artifi...

If the period of revolution of an artificial satellite just above the earth's surface is T and the density of earth is p, then `pT^(2)` is

A

a universal constant whose value is `(3pi)/(G)`

B

a universal constant whose value is `(3pi)/(2G)`

C

proportional to radius of earth R

D

proportional to square of the radius of earth `R^(2)` Here, G=universal gravitational constant

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A
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