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A uniform ring of mass M and radius R is...

A uniform ring of mass M and radius R is placed directly above a uniform sphere of mass 8M and of same radius R. The centre of the ring is at a distance of `d = sqrt(3)R` from the centre of the sphere. The gravitational attraction between the sphere and the ring is

A

`(GM^2)/(R^2)`

B

`(3GM^2)/(R^3)`

C

`(2GM^2)/(sqrt(2)R^2)`

D

`(sqrt(3)GM^2)/(R^2)`

Text Solution

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The correct Answer is:
D
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