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AP EAMCET202420 May 2024Morning ShiftPhysicsMechanical Properties of FluidsActual

The radius of cross-section of the cylindrical tube of a spray pump is 2 cm . One end of the pump has 50 fine holes each of radius 0.4 mm . If the speed of flow of the liquid inside the tube is 0.04 ~ms ⁻¹ , the speed of ejection of the liquid from the holes is

Options

  1. A6 ~ms ⁻¹
  2. B2 ~ms ⁻¹
  3. C4 ~ms ⁻¹
  4. D3 ~ms ⁻¹

Correct answer

B. 2 ~ms ⁻¹

Step-by-step solution

r₁=2 ~cm , r₂=0.04 ~cm , v₁=0.04 ~ms ⁻¹ By equation of continuity, A₁ v₁=50 A₂ v₂ (2)^2 0.04=50 (0.04)^2 v₂ v ₂=2 ~ms ⁻¹

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