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BITSAT2017PhysicsMechanical Properties of FluidsActual

An ice-berg of density 900 kgm - 3 is floating in water of density 1000 kgm - 3 . The percentage of volume of ice-berg outside the water is

Options

  1. A20   %
  2. B35   %
  3. C10   %
  4. D11   %

Correct answer

C. 10   %

Step-by-step solution

Let the volume of ice-berg is V and its density is ρ . If this ice-berg floats in water with volume V in inside it, then V in σ g = V ρ g σ = density of water ⇒   V in = ρ σ · V ⇒   V out = V - V in = σ - ρ σ   V = 1000 - 900 1000   V = V 10 ⇒   V out   / V = 0 . 1 = 10   %

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