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Two small and heavy spheres, each of mas...

Two small and heavy spheres, each of mass M, are placed a distance r apart on a horizontal surface. The graviational potential at the mid-point on the line joining the centre of the spheres is :-

A

Zero

B

`-(GM)/r`

C

`-(2GM)/r`

D

`-(4GM)/r`

Text Solution

Verified by Experts

The correct Answer is:
D

`V=(-GM)/(r//2)-(GM)/(r//2)`
`=-(4GM)/r`
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