A human hair is about 50 um thick. A pet flea is about 1 mm in size. How many times smaller is the thickness of a human hair than a flea?

asked Feb 28, 2021 51.5k views

4 votes

A human hair is about 50 um thick. A pet flea is about 1 mm in size. How

many times smaller is the thickness of a human hair than a flea?

by Pkout

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5 votes

Convert 50 um into mm

50um * .001 mm= .05 mm

.05/1= .05 times smaller

Furious Duck answered Mar 6, 2021

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