(a) Define angle of contact
(b) Draw sketches to show angles of contact for a capillary tube dipped vertically in (i) water; (ii) mercury.
Verified Correct Answer: .
Physical Principles & Numerical Solution
(a) Angle of contact - the angle, measured through the liquid between the wall of the container and the tangent of the meniscus.
(b)
Source: Myschool Past Questions Archive (Record #54141)