Question

A 200g wt. solid block of aluminium (density Al=2.70g/cc) is placed in a breaker of water. the same is done in another breaker with a 200 g solid block of lead (density lead =11.3g/cc). compare the amount of water displaced by block of aluminium and block of lead .

Answer 1

Volume of block of Aluminium,V=mass/density V=200/2.10=95.2So Water displaced=Volume×density of water ×g =95.2×1×980(1 N=10−5dynes)=.93NVolume of Lead block=200/11.3=17.6Water displaced by Lead block=17.6×1×980=.173N

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