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A liquid rises to a height of 7.0 cm in ...

A liquid rises to a height of 7.0 cm in a capillary tube of radius 0.1 mm. The density of the liquid is `0.8xx10^(3) "kgm"^(-3).`If the angle of contact between the liquid and the surface of the tube zero , calculate the surface tension of the liquid Given `g= 10 "ms"^(-2).`

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