The formula for finding surface tension is articulated as,
Where,
T= surface tension(N/m)
F = force per unit length (N)
l=length in which force act(m)
Surface Tension Solved Examples
Solved numerical related to surface tension are provided underneath:
Problem 1: Compute the surface tension of a given liquid whose dragging force is 5N and length in which the force acts is 2cm?
Answer:
Known values are,
F = 5N and l= 2cm
The formula for surface tension is,
T = 5/2
T = 2.5N/cm