Physics
Fluid-Mechanics
Easy
Question
A steel block having an internal cavity weighs 234 g in air and 197 g in water. If the density of steel is 7 .8 g cm-3, then the volume of the cavity is
The correct answer is:
Weight of water displaced by steel block
= Loss of weight of block in water =(234-197) gf = 37 gf
= Volume of water displaced 
Volume of block without cavity 
Volume of cavity 
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