what is the shape of the meniscus observed when water and mercury are taken in two different capillary tubes and why?
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It have concave shape bcz water wets the surface and creeps the side
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Mercury shows convex meniscus becoz adhesive force(b/w glass & mercury molecules) is less than cohesive force (b/w molecules of Hg).
Water shows cocave meniscus becoz adhesive force(b/w water molecules &glass) is more than cohesive force(b/w water molecules).
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