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9. GRAVITATION
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The volume of a $500\, g$ sealed packet is $350\, cm^3$. Will the packet float or sink in water if the density of water is $1\, g\, cm^{-3}$ ? What will be the mass of the water displaced by this packet?
Option A
Option B
Option C
Option D
Solution
Density of the $500\, g$ sealed packet $=\frac{\text {Mass of the packet}}{\text {Volume of the packet}}=\frac{500}{350}=1.428\, g / cm ^{3}$
The density of the substance is more than the density of water $(1\, g/cm^3)$. Hence, it will sink in water.
The mass of water displaced by the packet is equal to the volume of the packet, i.e., $350\, g$.
Standard 9
Science
