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AP EAMCET202419 May 2024Evening ShiftPhysicsMechanical Properties of FluidsActual

If S ₁, ~S ₂ and S ₃ are the tensions at liquid-air, solid-air and solid-liquid interfaces respectively, and is the angle of contact at the solid-liquid interface, then

Options

  1. AS ₁, + S ₂ = S ₃
  2. BS₁ +S₃=S₂
  3. CS₂ +S₃=S₁
  4. DS₃ +S₁=S₂

Correct answer

B. S₁ +S₃=S₂

Step-by-step solution

At equilibrium of liquid drop, S₂=S₁ +S₃

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