MCQ
Unit of surface tension is
- ✓$Nm ^{-1}$
- B$N m^{-2}$
- C$N^2 m^{-1}$
- D$Nm ^{-3}$
✓
Answer
Correct option: A.
$Nm ^{-1}$
(a) $T=\frac{F}{l}=\mathrm{Nm}^{-1}$
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