Question

please give the solution to my problem

Answer 1

Gravitational field at origin is
Gm × (1/1^2 + 1/2^2 + 1/4^2 + 1/8^2.......)
Here, m = 1kg,
1 + 1/2^2 + 1/4^2 +1/8^2....
= 1 + 1/2^2 + 1/ 2^4 + 1/2^6 + 1/2^8 +......
= 1/(1-1/4)
= 4/3

Therefore, answer is 4G/3.

Answer 2

Hiiii...

Here is answer ... B : 4G / 3