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Two identical solid copper spheres of ra...

Two identical solid copper spheres of radius `R` placed in contact with each other. The gravitational attracton between them is proportional to

A

`R^2`

B

`R^(-2)`

C

`R^4`

D

`R^(-4)`

Text Solution

Verified by Experts

The correct Answer is:
C
`F=(Gmm)/((2R)^2)=(G(4/3piR^3p)^2)/(4R^2)=(4Gpi^2R^4p^2)/9`
`FpropR^4`
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