Q115 / 150 · MHT CET 2019 (Shift 2) · Physics

Which one of the following statement is correct?

A
Surface energy is potential energy per unit length
Correct answer
B
Surface tension is work done per unit area
C
Surface tension is work done per unit length
D
Surface energy is work done per unit force

Solution

Surface tension is the force applied per unit length or work done (or energy) per unit area of a liquid surface. While surface energy is the amount of work done per unit area by the force.

Hence, the correct answer is option: 'B'.

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