1.

A wooden block is tied to a metallic rod of mass 100 g and immersed completely inwater. When the displaced water is collected in water.

Answer»

Solution :Mass of the metallic rod = 100 g
Volume of the metallic rod + volume of WOODEN BLOCK = 400 ml
Density of the metallic rod = 5 g `cm^(-3)`
Volume of the metallic rod
=` massof the metallic rod/density of the rod`=`8/1=n^(3)/1,n^(3)=8, n=2` Volume of wooden the block = `400-20 = 380 cm^(3)`
Mass FO the wooden block =`"mass"/"volume"=300/380=0.79" g "cm^(-3)`


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