Question

Consider earth to be a homogeneous sphere , Scientist A goes deep down in a mine and scientist B goes high up in a balloon. The acceleration due to gravity as measured by : 

A

A goes on decreasing . B goes on increasing

B

B goes on decreasing , A goes on increasing

C

each remains unchanged

D

each goes decreasing

Medium
Solution
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Correct option is D)

The acceleration due to gravity goes on decreasing for both the scientists A and B.


Since,  

So, as the distance from the center of earth increases, the value of g decreases.


Let scientist A be at a depth

Then only attraction is due to the sphere , where   is the radius of earth. 

As the attraction due to rest of the earth cancels out, so the value of decreases.

Solve any question of Gravitation with:-
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