The size of suspension particles lies in the range

The suspensions have particle size >100 nm. We know that

${\text{1\hspace{0.17em}nm\hspace{0.17em}= 10}}^{-7}\text{cm}\left(\text{\hspace{0.17em}or}\right){10}^{-9}\text{m}$; Hence,

$100\text{nm\hspace{0.17em}=\hspace{0.17em}}100\times {10}^{-7}\text{cm\hspace{0.17em}}={10}^{-5}\text{cm}$.

If the particle size is$>100\text{nm}$, then it is${\text{>10}}^{-5}\text{\hspace{0.17em}cm}$.