Question

Write the SI unit of surface tension.

Answer 1

The force per unit length on surface of liquid is known as surface tension.

Its SI unit is newton per meter (Nm^-1)

Answer 2

#Newton per meter (N/m or Nm^-1)
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☆ The SI unit of surface tension is N/m or Nm^-1 (newton per meter).

☆ The CGS unit of surface tension is dyn/cm (dyne per centimeter).

☆ Surface tension is defined as the force per unit length.

Surface Tension = Force/Length.

☆ Dimensional Formula of Surface Tension = Dimensional Formula of Force/Length

= (M^1 L^1 T^-2)/L^1

= M^1 L^0 T^-2.

☆ The symbol 'γ' represents "Surface Tension".