Micrometre

Micrometre (also known as a micron) is a unit of length in the metric system, equal to one millionth of a metre (the SI base unit of length). It is symbolized as μm.

Overview

A micrometre is a unit of measurement that is often used in science and technology. It is commonly used in microscopy, nanotechnology, and for measuring wavelengths of electromagnetic radiation, sizes of biological cells and bacteria, and for grading wool fibre.

Usage in Medicine

In the field of medicine, micrometres are used to measure cells and microorganisms, as well as to measure the wavelength of electromagnetic radiation that can be used in medical imaging. For example, red blood cells are approximately 6-8 micrometres in diameter, while human hair has a diameter of 50-75 micrometres.

Measurement

The micrometre is a common unit of measurement in the sciences, due to its suitability for representing the size of cells and organelles. It is also used in the field of physics for measuring wavelengths of light and other small quantities.

See Also

• Nanometre
• Millimetre
• Metre
• Kilometre

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