2026 · Q58
Gravitational acceleration at moon is 1/6 of that on earth. On earth, if an object floats in water with fraction 'fe' of its volume submersed in water, and on moon, fraction 'fm' is submersed, then
General KnowledgePhysics
- Afe > fm
- Bfe < fm
- Cfe = fm
- Dfm = (1/6) fe
Explanation
The submerged fraction follows from weight = buoyant force: rho(object) x V x g = rho(water) x V(submerged) x g, so g cancels and the fraction depends only on the density ratio. Hence the fraction submerged is identical on Earth and the Moon. The answer is (C) fe = fm.