Mechanical Properties of Fluids

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• Two capillary tubes of same diameter are put vertically one each in two liquids whose relative densities are 0.8 and 0.6 and surface tensions are 60 and 50 dyne/cm respectively Ratio of heights of liquids in the two tubes $\frac{{{h}_{1}}}{{{h}_{2}}}$is

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• The temperature at which the surface tension of water is zero

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