Q4 of 44 Page 335

An empty tin container with its mouth closed has an average density equal to that of liquid. The container is taken 2 m below the surface of the liquid and is left there. then the :


The container is hollow from inside. It displaces a volume of water having weight more than the weight of container. Thus, it experiences an upthrust and bounces back to the surface.

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The relative density of a solid is 0.6. It floats in water with :

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A balloon filled with hydrogen rises upwards because :

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The unit of relative density is :

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Two balls, one of iron and other of aluminium experience same upthrust when dipped in water.