What is the unit of viscosity?

What is the unit of viscosity?
  1. $\mathrm{Kg} \mathrm{s}^{-1}$
  2. $\mathrm{Nsm}^{-2}$
  3. $\mathrm{Kg} \mathrm{s}^{2}$
  4. $\mathrm{Nm}^{-1}$

Solution

The SI unit of viscosity is the pascal-second ( $\mathrm{Pa} \cdot \mathrm{s}$ ), which is also equal to newton-second per square meter ( $N \cdot \mathrm{~s} / \mathrm{m}^2$ ).

Asked in: MHT CET 2020 (19 Oct Shift 2)

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