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प्रश्न
Two spheres of same size are made from copper and iron respectively. Find the ratio between their masses (Density of copper is 8,900 kg/m and iron is 7,800 kg/m3 ).
उत्तर
Given : Density Copper Dc = 8900 kg/m3
Density of Iron D1 = 7800 kg/m3
Volume of Copper sphere = Volume of Iron sphere
To find : Ratio of Masses of Copper (MC) and Iron (MI)
Solution: Mass = Density x Volume
MC = DC x V, M1 = D1 x V
MC = 8900 V, M1 = 7,800 V
MC = M1
8900 V : 7800 V
= 1.14: 1
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