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JEE Main20207 Jan 2020Evening ShiftPhysicsMechanical Properties of FluidsActual

An ideal fluid flows (laminar flow) through a pipe of non-uniform diameter. The maximum and minimum diameters of the pipes are 6.4 c m and 4.8 c m , respectively. The ratio of the minimum and the maximum velocities of fluid in this pipe is:

Options

  1. A9 16
  2. B3 2
  3. C3 4
  4. D81 256

Correct answer

A. 9 16

Step-by-step solution

Using equation of continuity A 1 V 1 = A 2 V 2 V 1 V 2 = A 2 A 1 = 4.8 6.4 2 = 9 16

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