# What is Dimensional Formula of Dynamic Viscosity?

Posted in Dimensional Formulae | Email This Post |Dynamic viscosity can be defined as the tangential force per unit area required to slide one layer against other when two layers are maintained ad a unit distance.

Mathematically,

Dynamic viscosity = Stress ( Length / velocity).

Dimensional Formula of Stress= M^{1}L^{-1}T^{-2}

Dimensional Formula of Length =M^{0}L^{1}T^{0}

Dimensional Formula of velocity = M^{0}L^{1}T^{-1}

Putting these values in above equation we get,

Dynamic viscosity = M^{1}L^{-1}T^{-2} ( T^{1})

Dynamic viscosity =M^{1}L^{-1}T^{-1}

**Dimensional Formula of Dynamic viscosity = M ^{1}L^{-1}T^{-1}**

**SI unit of Dynamic viscosity is Kg / ms**