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Mercury has an angle of contact equal to...

Mercury has an angle of contact equal to `140^@` with soda lime glass. A narrow tube of radius 1.00mm made of this glass is dipped in a trough containing mercury. By what amount does the mercury dip down in the tube relative to the mercury surface outside? Surface tension of mercury at the temperature of the experiment is 0.465 `Nm^-1`. Density of mercury =`13.6 times 10^3 kg m^-3`

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NCERT BANGLISH-MECHANICAL PROPERTIES OF FLUIDS -EXERCISE
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