The surface tension of a liquid is $70 \, dyne/cm$. In $MKS$ system its value is

If the work done in increasing the size of a soap film from $10\, cm \times 6\, cm$ to $60\, cm \times 11\, cm$ is $2 \times 10^{-4}\, J$,what is the surface tension?

$A$ spherical body of density $\rho$ is floating half immersed in a liquid of density $d$. If $\sigma$ is the surface tension of the liquid,then the diameter of the body is

Arrange the following liquids in increasing order of surface tension: Water,Mercury,Soap solution.

If a section of a soap bubble (of radius $R$) through its center is considered, then the force on one half due to surface tension is

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