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BITSAT2022PhysicsMechanical Properties of FluidsActual

A capillary tube is attached horizontally to a constant heat arrangement. If the radius of the capillary tube is increased by 25 % , then the rate of flow of liquid will change nearly by

Options

  1. A100 %
  2. B112 %
  3. C124 %
  4. D144 %

Correct answer

D. 144 %

Step-by-step solution

Liquid volume coming out of the tube per second aligned & V= p r^4 8 l & & V₂ V₁ = [ r₂ r₁ ]^4 V₂=V₁ [ 125 100 ]^4=V₁ ( 5 4 )^4 & & So, now V V = V₂-V₁ V₁ = (244) V₁-V₁ V₁ =144 % aligned

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