Question

The size of carbon nano tube is $25\times {10}^{-9}m$ and the size of bacterial cell is $5\mu m$. Find the ratio of size of bacterial cell to carbon nano tube.
[Given $1\mu m={10}^{-6}m$]

Answer 1

Size of carbon Nano tube $=25\times {10}^{-9}m$

$Sizeofbacterialcell=5\mu m=5\times {10}^{-6}m$

Ratio of bacterial cell to carbon nano tube

$=5\times {10}^{-6}m:25\times {10}^{-9}m$

$=\frac{5\times {10}^{-6}m}{25\times {10}^{-9}m}$

$=\frac{200}{1}$

$=200:1$