Question

Below is a photograph of a hair taken through a microscope (the thick structure with scales is the hair). If its diameter is 0.000080 m. What is the diameter of the hair?

a. 8.0 mm
b. 0.8 mm
c. 8.0 m
d. 80 µm

Answer 1

The diameter of the hair shown in the photograph is 80 micrometers (µm), after converting from meters.

Step-by-step explanation:

The photograph shows the diameter of a hair as 0.000080 m. To find the appropriate unit and value for the diameter, we can convert meters to micrometers. Since 1 micrometer is equal to 10-6 meters, we can express the diameter of the hair as:

0.000080 m = 0.000080 / 10-6 µm = 80 µm

Therefore, the correct answer is d. 80 µm.