A very large number of particles of same mass m are kept at horizontal distances of 1 m, 2 m, 4 m, 8 m.....(upto infinity) from origin. The total gravitational potential at origin is
-8Gm
-3Gm
-4Gm
-2Gm
A
-4Gm
B
-8Gm
C
-3Gm
D
-2Gm
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