AIPMT PRELIMS2012Physics-Gravitation
AIPMT PRELIMS 2012 Physics Acceleration due to Gravity MCQ Question
Type: MCQ-numerical-Medium-Class 11
A spherical planet has a mass Mₚ and diameter Dₚ. A particle of mass m falling freely near the surface of this planet will experience an acceleration due to gravity, equal to
A
4 GMₚ m / Dₚ²
B
4GMₚ / Dₚ²
C
GMₚ m/Dₚ²
D
GMₚ / Dₚ²
Correct Answer
Option B
Detailed Explanation
The acceleration due to gravity at the surface of a planet is given by g = GMₚ / R². For a spherical planet, R = Dₚ/2, so g = 4GMₚ / Dₚ².
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