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A drop of water of volume V is pressed between two glass plates so as to spread in an area A. If T is the surface tension then the normal force required to separate the glass plates is ?

A drop of water of volume V is pressed between two glass plates so as to spread in an area A. If T is the surface tension then the normal force required to separate the glass plates is ?

Grade:12

1 Answers

Prashant
34 Points
6 years ago
Normal force required will be = 2*(Surface Tension of liquid)*(Area)²/(Volume of liquid)
aka N = 2TA²/V
i found this  in a book 
 

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