Object floats with 40% volume submerged. Density ratio (object/liquid) is:

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Floatation: weight = buoyant force ⇒ ρ_obj·V·g = ρ_liq·V_sub·g ⇒ ρ_obj/ρ_liq = V_sub/V = 0.4. Fraction submerged equals density ratio. Memory tip: 'Submerged fraction = ρ_object/ρ_fluid'. Direct Archimedes' principle application frequently tested in buoyancy sections of competitive exams.

Object floats with 40% volume submerged. Density ratio (object/liquid) is: MCQ with Answer and Explanation

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