MHT CET Physics question

Physics Gravitation MHT CET

The earth is to be considered as a homogeneous solid sphere. Scientist A goes deep down in mine and scientist B goes high up in a balloon. The value of measured by

(A)A goes on decreasing and that by B goes on increasing
(B)B goes on decreasing and that by A goes on increasing
(C)Each decreases at the same rate
(D)Each decreases at different ratesCorrect

Answer: (D)

Solution

Below the surface decreases linearly with depth, and above it (for small ) decreases about twice as fast;

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Question ID VK-059703