A metal cube weighs 200 gram in air and 180 gram in water the volume of metal cube will be?
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We will use the weight in air to find the mass of the cube.
The mass comes out to be 200 gm.
Now, according to Archimedes principle, buoyant force is equal to weight of water displaced.
Net weight = 20g
Thus , 20g= mg- buoyant force( i.e, V*rho of water * g)
On calculation, volume comes out to be 20× 10^-6 litres...
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