System of units:
there are only for System of units which are commonly used and universally recognised.
(a)C.G.S system of units
(b)F.P.S system of units
(c)M.K.S system of units
(d)S.I units
(a)C.G.S system of units-
In this system, the units of length, mass and time are centimetre, gram and second respectively.
(b)F.P.S system of units-
In this system, the units of length, mass and time are foot,pound and second respectively.
(c)M.K.S system of units-
In this system, the units of length, mass and time are metre ,kilogram and second respectively.
(d)S.I units (international system of units)-
The eleventh general conference of weights and measures has recommended a unified and systematically constituted system of fundamental and derived units for international use. This System of units are called SI unit. In the system seven base quantities have been assigned proper and standard units-
