InterviewSolution
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InterviewSolution
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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 increasingC. each remains unchangedD. each goes on decreasing |
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Answer» The acceleration due to gravity goes on decreasing for both the scientists A and B. For scientist B, Since, g ∝ \(\frac{1}{r^2}\) So, as the distance from the center of earth increases, the value of g decreases. For scientist A, Let scientist A be at a depth d. Then only attraction is due to the sphere (R – d), where R is the radius of earth. As the attraction due to rest of the earth cancels out, so the value of g decreases. Hence, option D is correct. |
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