MHT CET · Physics · Mechanical Properties of Fluids
A liquid drop of volume \(V\) is placed on the surface of glass plate. Then another glass plate is placed on it such that liquid forms a thin layer of area A between the surfaces of two plates. To separate the plates a force \(F\) has to be applied normal to the surfaces. The surface tension of the liquid is
- A \(\frac{\mathrm{FV}}{2 \mathrm{~A}}\)
- B \(\frac{F V}{2 A^2}\)
- C \(\frac{F V}{A^2}\)
- D \(\frac{F}{V A}\)
Answer & Solution
Correct Answer
(B) \(\frac{F V}{2 A^2}\)
Step-by-step Solution
Detailed explanation
\(F = \frac{2TA}{d}\) \(d = \frac{V}{A}\)
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