STANDARD Physics Buoyancy MCQ Question
A block of wood floats in water with (4/5)th of its volume submerged. If the same block just floats in a liquid, the density of the liquid (in kg m⁻³) is
1250
600
400
800
Correct Answer
Detailed Explanation
According to Archimedes' principle, the weight of the body is equal to the weight of the liquid displaced. In water, the block displaces 4/5 of its volume, so the density of the liquid is equal to the density of water divided by 4/5, which gives 800 kg m⁻³.
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