Measurement is a process of determining how large or small a physical quantities is a compared to a basic reference started. This reference started is called the unit of particular Physical quantities. Unit are of two type.
(I) Fundamental unit
The unit of fundamental quantities are called fundamental or base unit.
Fundamental unit of some physical quantity are as follow
(ii) Derived unit
The unit of derived quantities are called derived unit.
E.g.,Let us consider the unit of speed.
Thus, the unit of speed is derived from fundamental unit of length and time
Derived unit of some physical quantity are as follows
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