Q.

When a body is taken from the equator to the poles, its weight


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a

Remains constant

b

Increases

c

Decreases

d

Increases at N-pole and decreases at S-pole  

answer is B.

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Detailed Solution

When a body is taken from the equator to the poles, its weight increases.
“The force of gravity acting between the earth and any other object is directly proportional to the mass of the earth, directly proportional to the mass of the object, and inversely proportional to the square of the distance which separates the centres of the earth and the object.” Since the distance of the pole is less than the distance of the equator from the centre of the earth. Therefore, when a body is taken from the equator to the poles, the distance between the centre of the earth and the body decreases as well as the weight of the body increases (by the law of gravity).
 
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