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Q.

The value of acceleration due to gravity


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a

is same on equator and poles.

b

is least on poles.

c

is least on the equator.

d

increases from the equator to the poles. 

answer is D.

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Detailed Solution

The value of acceleration due to gravity increases from the equator to the poles.
As our earth is geoid or oval shaped radius at the equator is larger than the radius at the pole. That is
Requater>Rpole
We know that acceleration due to the gravity of the earth is g=GMR2
The value of ‘g’ is inversely proportional to the square of the radius. So, acceleration due to gravity at the equator is less than that of the pole gequater<gpole.
 
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