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Physics · GRAVITATION

हिन्दी

If the gravitational acceleration at the surface of Earth is \( g \) and the centripetal acceleration of the Moon in its orbit of radius \( R_m \approx 60 R_E \) is \( a_m \), what is the ratio \( g / a_m \)?

  1. \( \frac{1}{3600} \)
  2. 60
  3. \( \frac{1}{60} \)
  4. 3600

Correct answer · Option 4

3600

Explanation

Since gravitational acceleration follows an inverse-square law, g / a_m = (R_m / R_E)^2 = (60)^2 = 3600.
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