Gravitation Question 366

Question: Infinite number of masses, each 1 kg are placed along the x-axis [atx=±1m,±2m,±4m,±] [8m,±16M…] the magnitude of the resultant gravitational potential in terms of gravitational constant G at the or g in [(x=0)] is

Options:

A) G/2

B) G

C) 2G

D) 4G

Show Answer

Answer:

Correct Answer: C

Solution:

  • [V=GMr=−G(11+12+14+18+….∞)]

    [=−G(11−1/2)=−2G]

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