The free surface of a liquid has a tendency to contract. This property is called ...... .

The surface tension of $70 \text{ dynes/cm}$ is equal to:

$A$ metal wire of density $\rho$ floats on the water surface horizontally. If it is not to sink in water,then the maximum radius of the wire is ($T$ = surface tension of water,$g$ = gravitational acceleration).

The value of surface tension of a liquid at critical temperature is

Why is the surface tension of antiseptics kept low? Explain.

In most liquids, with a rise in temperature, the surface tension of the liquid