Notice the picture. Mercury and water are taken in the two boiling tubes. In each of these a similar type of capillary tube is placed. Answer the following questions based on the picture a) Write down the liquids in the boiling tubes A and B. b) Find that in both cases the cohesive force and the adhesion force are greater c) The fields are ploughed just before summer. What is the benefit of it
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a) A- Water
B- Mercury
b) in mercury the adhesive force is greater and in water the cohesive force is greater
c) to prevent the evaporation of underground water
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