A piece of metal of mass 17 g is tied to cork of mass 5 g and the combination floats without sinking in water. If relative density of cork is 0.25 and water 1, the relative density of metal is :

A piece of metal of mass 17 g is tied to cork of mass 5 g and the comb

1.	A piece of metal of mass 17 g is tied to cork of mass 5 g and the combination floats without sinking in water. If relative density of cork is 0.25 and water 1, the relative density of metal is :
Answer» 2 5 8.5 10.5 Solution :SINCE the COMBINATION is FLOATING in water R.D. of water = R.D. of combination `=(m_(1)+m_(2))/([(m_(1))/(d_(1))(m_(2))/(d_(2))])=(17+5)/(17/(d_(1))+5/(0.25))` or `d_(1)=8.5`. CORRECT choice is (c).

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A piece of metal of mass 17 g is tied to cork of mass 5 g and the combination floats without sinking in water. If relative density of cork is 0.25 and water 1, the relative density of metal is :

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