A very large number of particles of same mass \( m \) are kept at h...

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A very large number of particles of same mass \( m \) are kept at horizontal distances of \( 1 \mathrm{~m}, 2 \mathrm{~m}, 4 \mathrm{~m}, 8 \mathrm{~m} \) and so on from
P \( (0,0) \) point. The total gravitational potential at this point is:

W.
(a) \( -8 \mathrm{Gm} \)
(b) \( -3 \mathrm{Gm} \)
(c) \( -4 \mathrm{Gm} \)
(d) \( -2 \mathrm{Gm} \)
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