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

If `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

`(4pi G)/(3gR)`

B

`(3piR)/(4gG)`

C

`(3g)/(4 pi RG)`

D

`(pi R g)/(12G)`

Text Solution

Verified by Experts

The correct Answer is:
C
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Knowledge Check

  • A satellite is in a circular orbit round the earth at an altitude R above the earth’s surface, where R is the radius of the earth. If g is the acceleration due to gravity on the surface of the earth, the speed of the satellite is

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    `2pisqrt(R/g)`
    B
    `2pisqrt((R)/(2g))`
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