Question

What is surface tension ? Write its S.I. unit .

Answer 1

$\huge{\mathfrak{\blue{\underline{Answer}}}}$

Surface tension is defined as "the Force acting per unit length"

Its si unit

$\huge{\mathcal{\blue{\underline{Newton/metre}}}}$

Answer 2

Physical units

Surface tension, represented by the symbol γ (alternatively σ or T), is measured in force per unit length. Its SI unit is newton per meter but the cgs unit of dyne per centimeter is also used.