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Question

An ice berg of density 900Kgm3 is floating in water of density 1000Kgm3. The percentage of volume of ice-cube outside the water is

A
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C
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Solution

The correct option is C
Let the total volume of ice-berg is V and its density is rho. If this ice-berg floats in water with volume Vin inside it then Vinσg=VρgVin=(ρσ)V [σ = density of water]
or Vout=VVin=(σρσ)V
VoutV=(σρσ)=10009001000=110
Vout=10%ofV

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