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MHT CET202013 Oct 2020Morning ShiftPhysicsMechanical Properties of FluidsActual

Water flows through a horizontal pipe at a speed 'V'. Internal diameter of the pipe is 'd'. If the water is emerging at a speed ' V₁ ' then the diameter of the nozzle is

Options

  1. AV V ₁
  2. Bd V ₁ ~V
  3. Cd V V ₁
  4. Dd V₁ ~V

Correct answer

C. d V V ₁

Step-by-step solution

By equation of continuity A₁ V₁=A₂ V₂ array l V ₂ ~V ₁ = A ₁ ~A ₂ = d ₁² ~d ₂² d ₂² ~d ₁² = v ₁ v ₂ d ₂ ~d ₁ = v ₁ v ₂ d ₂= d ₁ v ₁ v ₂ = d v v ₁ array A d ²

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