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Q.

[9]

Is it true that the value of g is minimum at the poles?


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a

True

b

False 

answer is B.

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Detailed Solution

The above statement is False.
We know that the value of g above the earth’s surface is inversely proportional to the square of distance from the centre of the earth, r.
1r2
As we go up the surface of the earth, the distance from the centre of the earth increases and hence the value of g decreases. The radius of the earth is maximum at the equator, the value of g is minimum at the equator. Also, since the radius of the earth is minimum at poles, the value of g is maximum at the poles.
The correct statement would be that the value of g is maximum at the poles.
 
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