Question

write about the Convex liquid surface​

Answer 1

Answer:

Conversely, a convex meniscus occurs when the particles in the liquid have a stronger attraction to each other than to the material of the container. Convex menisci occur, for example, between mercury and glass in barometers and thermometers

Answer 2

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Surface of the liquidis upper convex. (Convex, when seen from above). In this case, the resultant force due to surface tension, f_T on the molecule at B is vertically downwards and adds up to the downward force f_A . This develops greater pressure at point B, which is inside the liquid and on the concave side of the meniscus. Thus, the pressure on the concave side i.e., inside the liquid is greater than that on the convex side i.e., outside the liquid