An infinite number of masses. each of 1 kg, are placed on the positives x-axis at distance of 1 m , 2 m , 4 m , 8 m , 16 m , . . . . . .∞ From the origin. The gravitational field at the origin due to this distribution is

Q: An infinite number of masses. each of 1 kg, are placed on the positives x-axis at distance of 1 m , 2 m , 4 m , 8 m , 16 m , . . . . . .∞ from the origin . The gravitational field at the origin due to this distribution is

(a) 2G

(b) 4G/3

(c) 3G/4

(d) ∞

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Ans: (b)