Gravitational force is maximum at which of the following place?

Options

A. At equator
B. At tropic of cancer
C. At tropic of Capricorn
D. At poles

Answer

D

Explanation

Gravitational field between two bodies, as expressed by Newtonian equation, is in versaly proportional to square of the distance between their centres of gravity i.e. the higher the distance between the bodies the lower the gravitational field. The Earth is not a perfect sphere and its radius varies at the poles and the equator, the radius being more at the equator than at the poles. This means that a body at the equator is farther away from the earth.s centre than a body at hte poles. So, the gravitational force is maximum at the poles.