Question

A capillary of the shape as shown is dipped in a liquid. Con­tact angle between the liquid and the capillary is 0° and ef­fect of liquid inside the meniscus is to be neglected. If T is surface tension of the liquid, r is radius of the meniscus, g is acceleration due to gravity and ρ is density of the liquid then height h in equilibrium is

• A. Greater than $\frac{2T}{h\rho g}$
• B. Equal to $\frac{2T}{h\rho g}$
• C. Less than $\frac{2T}{h\rho g}$
• D. Of any value depending upon act

Answer 1

Answer: (B)

Equal to $\frac{2T}{h\rho g}$

Answer 2

Height to which the liquid rises is not depenedent upon shape of the tube.