A) N-m
B) N/m
C) \[N-{{m}^{2}}\]
D) N
Correct Answer: B
Solution :
Unit of surface tension\[=\frac{Unit\,\,of\,\,force}{Unit\,\,of\,\,length}\] \[S=\frac{F}{l}=\frac{N}{m}\]. Unit of surface tension is\[N/m\].
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