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MHT CET202120 Sep 2021Morning ShiftPhysicsMechanical Properties of FluidsActual

The surface energy of a liquid drop is ' U '. It splits up into 512 equal droplets. The surface energy becomes

Options

  1. A8 U
  2. B6 U
  3. C4 U
  4. D2 U

Correct answer

A. 8 U

Step-by-step solution

aligned & 4 3 R^3=512 4 3 r^3 & r= R 8 & U=4 R^2 T & U^ =512 4 r^2 T & =512 4 R^2 T 64 =8 (4 R^2 T )=8 U aligned

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