Figure 6 (a) and 6 (b) shows capillary tubes inserted in water and mercury respectively

      

Figure 6 (a) and 6 (b) shows capillary tubes inserted in water and mercury respectively
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It is observed that in water the meniscus in the capillary tube is higher than the meniscus in the beaker. While in mercury the meniscus in the capillary tube is lower than the meniscus in the beaker. Explain these observations

  

Answers


John
In (a) the adhesive force between water and capillary tube is stronger than the cohesive force between the water molecules while in (b) the cohesive force between mercury and the tube is higher than the adhesive force between mercury and the tube.
johnmulu answered the question on April 13, 2017 at 08:13


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