A student was told that a drawing of a bacterial cell had been magnifi

1.	A student was told that a drawing of a bacterial cell had been magnified 30000 times. The length of the drawing was 45mm. What was the actual length of the bacterium?
Answer» Answer: 1.5 MICRONS Explanation: Size of the drawing = ACTUAL length of bacterium × MAGNIFICATION. Size of drawing = 45 mm = 45× 10^-3 m Magnification = 30000. Actual length of bacteria = $\frac{45 \times {10}^{ - 3} m }{30000} \: = \: \frac{45 \times {10}^{ - 3} m }{3 \times {10}^{4} } \\ = 1.5 \times {10}^{ - 6} m$ = 1.5 micro METRES or microns.

A student was told that a drawing of a bacterial cell had been magnified 30000 times. The length of the drawing was 45mm. What was the actual length of the bacterium?

Answer»

Answer:

1.5 MICRONS

Explanation:

Size of the drawing = ACTUAL length of bacterium × MAGNIFICATION.

Size of drawing = 45 mm = 45× 10^-3 m

Magnification = 30000.

Actual length of bacteria =

$\frac{45 \times {10}^{ - 3} m }{30000} \: = \: \frac{45 \times {10}^{ - 3} m }{3 \times {10}^{4} } \\ = 1.5 \times {10}^{ - 6} m$

= 1.5 micro METRES or microns.