Question : Intensity of gravitational field of earth is maximum at
Option 1: Poles
Option 2: Equator
Option 3: Centre of earth
Option 4: Surface
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Correct Answer: Poles
Solution : The correct answer is poles.
The effect of gravity is not same at every place on earth. It changes with the distribution of mass. Gravity is observed more at poles and least at equator because earth is an oblate spheroid and the distance between the centre and the poles is less than the distance between poles and equator. The value of gravitational constant G was given by Sir Issac Newton and it is equal to 6.6743 × 10 -11 m 3 kg -1 s -2 .
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