If the Moon is brought closer to the Earth such that its distance from the Earth becomes half of the original distance, then the gravitational force of attraction between the Earth and the Moon would :
- A. reduce to half of its original value.
- B. increase to two times of its original value.
- C. remain the same as the original value.
- D. increase to four times of its original value. ✓
Correct Answer: D. increase to four times of its original value.
Explanation
Gravitational force follows an inverse-square law (F \propto 1/r^2). If the distance r is halved, the force becomes (1/0.5)^2 = 4 times its original value.
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