Answer:
1.5 microns
Explanation:
It is given that the drawing of the bacterial cell is magnified by 30,000 times.
The size of the drawing of the bacterial cell is 45 mm
= [tex]$45 \times 10^{-3} \ m$[/tex]
Now size of the drawing = actual length of the drawing x magnification
Actual length of the bacterium is given by
= [tex]$\frac{45 \times 10^{-3}} {30000}$[/tex]
[tex]$= \frac{45 \times 10^{-3}} {3 \times 10^4}$[/tex]
[tex]$= 1.5 \times 10^{-6} \ m$[/tex]
or 1.5 microns