Question

State the different systems of units.​

Answer 1

Answer:

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Answer 2

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The concept of an internationally standardised system of units is one of the most fundamental in experimental science. Three major systems of units were used before SI was universally adopted.

1. The British Imperial FPS (foot-pound- second) system (1824)
2. The French metric CGS (centimetre-gram- second) system (1874)
3. The MKS (metre kilogram-second) system (1889) also a metric system.
4. The International System of Units (1960), abbreviated SI.

[$\bf\large\underline\green{Note:-}$: The MKS system went through several revisions before its last version, RMKSA (rationalized metre-kilogram-second-ampere) system (1946), was adapted into the International System of Units (SI) ]