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BITSAT2009PhysicsMechanical Properties of FluidsActual

A liquid is flowing through a non-sectional tube with its axis horizontally. If two points X and Y on the axis of tube has a sectional area 2.0 ~cm ³ and 25 ~mm ² respectively then find the flow velocity at Y when the flow velocity at X is 10 ~m / s .

Options

  1. A20 ~m / s
  2. B40 ~m / s
  3. C80 ~m / s
  4. D60 ~m / s

Correct answer

C. 80 ~m / s

Step-by-step solution

According to principle of continuity v_ y = v_ x A_ x A_ y = 10(m / s) 2 (c m² ) 25 10⁻² (c m² ) =80 ~m / s

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