Question

Briefly explain SI units and the importance of SI dimensions.

Answer #1

**The international System of Units (SI) is a metric system that is used universally.SI units play a vital role in scientific and technological research and development.****It is made up of 7 base units which are used for defining 22 derived units.****The full form of SI unit is System of International.****Having a Standard unit system is important because it helps the entire world to understand the measurements in one set of unit system.**

**ex.1) length(l)-meter-m**

**2)Mass(M)-kilogram-kg**

**3)Time(T)-Second-s**

**etc..**

**IMPORTANCE OF SI UNITS:**

**SI system is based on the precise and definite standards.****Latin and Greek prefixes are used in SI system and these refer to the numbers.****Without the use of conversion factors, the SI units can be derived from one another.****The base of SI system os 10,which makes the conversion easier.**

**Commonly used Units in measurements are**

**CGS system****MKS system****SI system**

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