Q. What is System International (SI) and write its significance?

Answer:

The International System (SI) of Units is a scientific method of expressing the magnitude or quantities of important natural phenomena. 

This system was established by the international committee of scientists in 1960 in Paris, France. The International Committee agrees on a set of definitions and standards to describe the physical quantities. 

The International System is abbreviated as "SI" i.e. Systeme Internationale, the French version of the name)

In earlier times scientists around the world were using a different system of units for their liking. Three such Systems are


1. MKS (Meter, kilogram second)

2. CGS (Centimeter, gram second) 

3. FPS (British System) (Foot, Pound second)

System International is built on three types of units, Base units, derived units, and Supplementary units


Significance of SI: 

1.  It's used throughout the world.

2. It is easy for trading internally & externally.


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