NEET Physics · Hard

Gravitation: Acceleration due to Gravity MCQ

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Acceleration due to GravityHardQuestion 6217

Question

Height at which g = g/9 (radius = R):
  1. A
    2R
    Correct
  2. B
    R
  3. C
    8R
  4. D
    3R

Correct answer

2R

Explanation

g/(1+h/R)² = g/9. (1+h/R)² = 9. 1+h/R = 3. h = 2R.