Unit of surface tension in S.I. unit is_________________?
Correct answer: B. Joule/m2
- A. Watt/m
- B. Joule/m2
- C. Newton/m2
- D. Joule/m
Explanation
Surface tension has units of force per unit length, N/m. Since 1 J=N·m, this is equivalently J/m², making option b correct; J/m is not the same unit.
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