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Olympiad workbookNSEPMechanical Properties of Fluids

Two plane glass testing slides each of surface area A are stuck with each other by a small water drop squeezed between them as an extremely thin film of thickness d . If the surface tension of water be T and the angle of contact be zero, then the force required to pull apart the two glass plates will be

Options

  1. A8 TA d
  2. B4 TA d
  3. C2 TA d
  4. DTA d

Correct answer

C. 2 TA d

Step-by-step solution

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