Answer: B. N/m
The SI unit of surface tension is N/m.
Solution
Surface tension is the tension of the surface film of a liquid caused by the attraction of the particles in the surface layer by the bulk of the liquid, which tends to minimize surface area”.
T= F/ L
Where; F=force
L=length
T=surface tension
SI Unit = N/m
CGS Unit = dyne/cm
Hence Option B is correct. The SI unit of surface tension os N/m.
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