Question

Surface tension can also be expressed as

• A. area per unit length
• B. torsion acting per unit length
• C. velocity per unit length
• D. force acting per unit length

Answer 1

Answer:

D. force acting per unit length

Surface tension is the property of a liquid where its free surface acts like a stretched membrane trying to contract to reduce its surface area. It is measured in N/m and is the force per unit length acting in the plane of interface between the liquid and the bounding surface.