Question

Describe capilary action a) capilary rise
b) capillary fall​

Answer 1

Answer:

Capillary rise or capillarity is a phenomenon in which liquid spontaneously rises or falls in a narrow space such as a thin tube or in the voids of a porous material. ... Internal cohesion in mercury, on the other hand, pulls down the liquid to form a convex meniscus. Menisci are thus a manifestation of capillary action.

Answer 2

Answer:

Capillary rise or capillarity is a phenomenon in which liquid spontaneously rises or falls in a narrow space such as a thin tube or in the voids of a porous material. ... Internal cohesion in mercury, on the other hand, pulls down the liquid to form a convex meniscus. Menisci are thus a manifestation of capillary action.