What is the dimensional formula of co-efficient of viscosity?

• Correct answer
  A

  Dimensional formula: $\left[{\text{M}}^1{\text{L}}^{-1}{\text{T}}^{-1}\right]$
• B

  Dimensional formula: $\left[{\text{M}}^2{\text{L}}^{-3}{\text{T}}^{-1}\right]$
• C

  Dimensional formula: $\left[{\text{M}}^{-4}{\text{L}}^1{\text{T}}^{-2}\right]$
• D

  Dimensional formula: $\left[{\text{M}}^{-1}{\text{L}}^3{\text{T}}^{-2}\right]$

Hence, the correct answer is option: 'A'.