Fundamental Units
`text(Units :)`
All physical quantities are measured with respect to standard magnitude of the same physical quantity and these standards are called standard units. eg. seconds, meter etc
So the four basic properties of units are :
(a) They must we well defined.
(b) They should be easily available and reproducible.
(c) They should be invariable e.g. step as a unit of length is not in variable.
(d) They should be accepted to all.
The units for the fundamental or base quantities are called fundamental or base units.
A set of physical quantities which are completely independent of each other and all other physical quantities can be expressed in terms of these physical quantities is called a set of fundamental quantities.
All physical quantities are measured with respect to standard magnitude of the same physical quantity and these standards are called standard units. eg. seconds, meter etc
So the four basic properties of units are :
(a) They must we well defined.
(b) They should be easily available and reproducible.
(c) They should be invariable e.g. step as a unit of length is not in variable.
(d) They should be accepted to all.
The units for the fundamental or base quantities are called fundamental or base units.
A set of physical quantities which are completely independent of each other and all other physical quantities can be expressed in terms of these physical quantities is called a set of fundamental quantities.
