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  4. Two vertical glass plates 1 mm apart are dipped into water. How high will be the water rise between the plates, if the surface tension of water is 70 text dyne/cm2 ?

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Q. Two vertical glass plates 1 mm apart are dipped into water. How high will be the water rise between the plates, if the surface tension of water is $ 70\text{ }dyne/c{{m}^{2}} $ ?

JamiaJamia 2010

Solution:

$ h=\frac{2T\cos \theta }{r\rho g}=\frac{2\times 70\times \cos 0{}^\circ }{0.1\times 1\times 980} $ $ =1.43\text{ }cm $