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States of Matter — Chemistry STD 11 Science — Question

Gujarat BoardEnglish MediumSTD 11 ScienceChemistryStates of Matter1 Mark
MCQ
The force acting per unit length perpendicular to the line drawn on the surface of liquid and its $\text{SI}$ unit respectively are :
  • A
    Gravitational force, Newton.
  • ✓
    Surface tension, $Nm^{-1}$.
  • C
    Surface energy, Joule.
  • D
    None of these
✓

Answer

Correct option: B.
Surface tension, $Nm^{-1}$.
Surface tension is defined as the force acting per unit length perpendicular to the line drawn on the surface of liquid. Its $\text{SI}$ unit is $Nm^{-1}$.

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