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A piece of ice is floating in water. The fraction of volume of the piece of ice outside the water is [ρice=900kg/m3] and [ρwater=1000kg/m3]
  1. 0.21
  2. 0.1
  3. 0.01
  4. 0.9


Solution

The correct option is B 0.1
Let V be the total volume of ice piece and V' is the volume of ice piece which is outside the water, then (VV)ρwaterg=Vρice×g(VV)1000=V×900 or V=V10=0.1V. So, fraction of ice piece outside the water is, f=VV=0.1.

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