Question

what is the shape of the meniscus observed when water and mercury are taken in two different capillary tubes and why?​

Answer 1

Answer:

It have concave shape bcz water wets the surface and creeps the side

Answer 2

Answer:

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).

अगर नही समझ आया तो माफी।