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MHT CET202020 Oct 2020Morning ShiftPhysicsMechanical Properties of FluidsActual

If ' T ^ is the surface tension of a soap solution, then the work done in blowing a soap bubble from diameter 'D' to diameter '2D' is

Options

  1. A2 TD ²
  2. B4 TD ²
  3. C8 TD ²
  4. D6 TD ²

Correct answer

D. 6 TD ²

Step-by-step solution

W= 4 4 (4 D²-D² ) T 2=3 D ² T 2=6 D ² T

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