Question

The unit of surface tension in the $\text{CGS}$ system is

• A. $\text{N/m}$
• B. $\text{kg/cm}$
• C. $\text{dyne/cm}$
• D. $\text{dyne/m}$

Answer 1

The correct option is C $\text{dyne/cm}$

We know that Surface Tension is defined as force per unit length.
$\Rightarrow T=\frac{F}{L}$
In $\text{CGS}$ system of units, unit of force is $\text{dyne}$ and unit of length is $\text{cm}$.
Therefore, unit of surface tension is $\text{dyne/cm}$.