As we go below the surface of the earth the value of g:
Correct answer: A. Decreases
- A. Decreases
- B. Increases
- C. Becomes zero
- D. Remains unchanged
Explanation
Certainly, as you go below the surface of the Earth, the value of ( g ) initially decreases due to the diminishing influence of mass above. However, as you go deeper, the increasing contribution of mass below you, particularly from the dense core, causes ( g ) to start increasing. Therefore, ( g ) decreases near the surface and then tends to increase with greater depth.
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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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