JEE Main & Advanced Physics Mathematical Tools, Units & Dimensions Question Bank Units

  • question_answer
    The unit of surface tension in SI system is [MP PMT 1984; AFMC 1986; CPMT 1985, 87; CBSE PMT 1993; KCET 1999; DCE 2000, 01]

    A) \[Dyne/c{{m}^{2}}\]

    B) \[I=\frac{Q}{t}=\frac{[Q]}{[T]}=[{{M}^{0}}{{L}^{0}}{{T}^{-1}}Q]\]

    C) \[Dyne/cm\]

    D) \[Newton/{{m}^{2}}\]

    Correct Answer: B

    Solution :

    Surface tension = \[\frac{\text{Force}}{\text{Length}}\] = \[Newtons/metre\]


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