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Water raises to a height of 10 cm in a c...

Water raises to a height of `10 cm` in a capillary tube and mercury falls to a depth of 3.5 cm in the same capillary tube. If the density of mercury is `13.6(gm)/(c.c)` and its angle of contact is `135^(@)` and density of water is `1(gm)/(c.c)` and its angle of contact is `0^(@C)` then the ratio of surface tensions of two liquids is `(cos135^(@)=0.7)`

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