Assume the earth to be homogeneous. Scientist A goes deep down in a mine and Scientist B goes up in a balloon. The value of g measured by:
Correct answer: A. Each goes on decreasing
- A. Each goes on decreasing
- B. Each remains unaltered
- C. B goes on decreasing and that of A goes on increasing
- D. A goes on decreasing and that of B goes on increasing
Explanation
A is correct. The value of g decreases up to 0 as we go toward the center of the Earth, and it also decreases as we go away from the Earth's surface.
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About Gravitation
Newton’s law of universal gravitation relates the force between masses to their masses and separation, while gravitational field strength explains weight and orbital motion. The topic covers satellite velocity and period, escape ideas, weightlessness in free fall, and artificial gravity, which differs from ordinary gravitational attraction.
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