A micron is a unit used to measure spray droplets. One micron equals what fraction of a millimeter?

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Multiple Choice

A micron is a unit used to measure spray droplets. One micron equals what fraction of a millimeter?

Explanation:
The concept here is understanding how the micro (μ) prefix relates to millimeters. A micron (micrometer) is 10^-6 meters, while a millimeter is 10^-3 meters. Comparing them, 1 micron = 1e-6 m = 0.001 mm, which is one thousandth of a millimeter. In other words, there are 1000 microns in a millimeter. This is why a micron is said to be one thousandth of a millimeter.

The concept here is understanding how the micro (μ) prefix relates to millimeters. A micron (micrometer) is 10^-6 meters, while a millimeter is 10^-3 meters. Comparing them, 1 micron = 1e-6 m = 0.001 mm, which is one thousandth of a millimeter. In other words, there are 1000 microns in a millimeter. This is why a micron is said to be one thousandth of a millimeter.

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