Which of the following places will have the least variation in the value of "g" due to the shape of the Earth?
Equator
Tropic of Cancer
North Pole
None of the above
At the poles, the shape of the Earth has the least effect on the value of 'g'. This is because the centrifugal force due to the Earth's rotation is zero at the poles and therefore the effect of the non-spherical shape of the Earth is the least.