The units of surface tension and viscosity of liquids respectively are

  • A
    $kg \ m^{-1} \ s^{-1}, \ Nm^{-1}$
  • B
    $kg \ s^{-2}, \ kg \ m^{-1} \ s^{-1}$
  • C
    $Nm^{-1}, \ kg \ m^{-1} \ s^{-2}$
  • D
    $kg \ s^{-1}, \ kg \ m^{-2} \ s^{-1}$

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