Question

The size of the bacteria is $3.8\mu$. Express the size of the bacteria in meter.

• A. 3.8 × 10^-6 m
• B. 3.8 × 10^-4 m
• C. 1.9 × 10^-6 m
• D. 3.8 m

Answer 1

The correct option is A

3.8 × 10^-6 m

Bacteria are generally smaller in size, but larger than viruses. Bacteria are measured in units of length called micrometers.
$\text{Size of bacteria is}3.8\mu .\text{Since,}1\mu ={10}^{-6}m.\text{Thus, size of the bacteria in meter will be}3.8\times {10}^{-6}m.$