A Piece Of Copper Having An Internal Cavity Weighs 264 G In Air And 221 G In Water. Find The Volume Of The Cavity. Density Of Copper Is 8.8 G/cc.

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Question

A piece of copper having an internal cavity weighs 264 g in air and 221 g in water. Find the volume of the cavity. Density of copper is 8.8 g/cc.

Solution

Correct option is

13 cc

, the volume of body will be

       

           = 43 cc 

Now as mass of body is 264 g while the density of material of body is 8.8 g/cc, the volume of material in the body  

        

           

           = 30 cc 

So  The volume of cavity = V – V0 = 43 – 30 = 13 cc

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Q10

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