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MHT CET20242 May 2024Evening ShiftPhysicsMechanical Properties of FluidsActual

Liquid drops are falling slowly one by one from vertical glass tube. The relation between the weight of a drop ' w ', the surface tension ' T ' and the radius ' r ' of the bore of the tube is (Angle of contact is zero)

Options

  1. AW = r ^2 ~T
  2. BW =2 ^2 r T
  3. CW = ( 4 2 ) ^2 rT
  4. DW =2 rT

Correct answer

D. W =2 rT

Step-by-step solution

array ll & Weight of liquid drop = Force due to surface & tension & W = Circumference of the tube T . & W =2 rT array

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