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JEE Main202522 Jan 2025Evening ShiftPhysicsMechanical Properties of FluidsActual

A tube of length L is shown in the figure. The radius of cross section at the point (1) is 2 cm and at the point (2) is 1 cm , respectively. If the velocity of water entering at point (1) is 2 ~m / s , then velocity of water leaving the point (2) will be

Options

  1. A4 ~m / s
  2. B2 ~m / s
  3. C6 ~m / s
  4. D8 ~m / s

Correct answer

D. 8 ~m / s

Step-by-step solution

aligned & A ₁ ~V ₁= A ₂ ~V ₂ 2 (2 R )^2= V ₂ R ^2 & ~V ₂=8 ~m / s aligned

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