L. A student was told that a drawing of a bacterial cell had been magnified 30 000 times. The length of the drawing was 45 mm. What was the actual length of the bacterium?

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

                                                                           =

Now size of the drawing = actual length of the drawing x magnification  

Actual length of the bacterium is given by

    =

or 1.5 microns