NEET 2018 · PhysicsSurface gPrevious Year Question
If the mass of the Sun were ten times smaller and the universal gravitational constant G ten times larger, which statement is NOT correct?
Answer: (D) 'g' on the Earth will not change. Correct Answer (D): 'g' on the Earth will not change Solution: g = G·M_earth/R² depends on G (not on the Sun's mass).
- A.Time period of a simple pendulum on Earth would decrease
- B.Walking on the ground would become more difficult
- C.Raindrops will fall faster
- D.'g' on the Earth will not change✓
Correct Answer
(D) 'g' on the Earth will not change
Solution & Explanation
Correct Answer (D): 'g' on the Earth will not change Solution: g = G·M_earth/R² depends on G (not on the Sun's mass). Making G ten times larger increases g, so 'g will not change' is the incorrect statement. The other effects all follow from a larger g.
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