NEET 2024 · PhysicsSurface gPrevious Year Question
The mass of a planet is 1/10th that of the earth and its diameter is half that of the earth. The acceleration due to gravity on that planet is:
Answer: (C) 3.92 m s⁻². Correct Answer (C): 3.92 m s⁻² Solution: g' = GM'/R'² = G(M/10)/(R/2)² = (4/10)·GM/R² = 0.4g = 0.4×9.8 = 3.92 m s⁻².
- A.9.8 m s⁻²
- B.4.9 m s⁻²
- C.3.92 m s⁻²✓
- D.19.6 m s⁻²
Correct Answer
(C) 3.92 m s⁻²
Solution & Explanation
Correct Answer (C): 3.92 m s⁻² Solution: g' = GM'/R'² = G(M/10)/(R/2)² = (4/10)·GM/R² = 0.4g = 0.4×9.8 = 3.92 m s⁻².
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