PHYSICAL QUANTITIES

                                 Fundamental Quantities of Physics


1. Length(L)

2.Mass(M)

3.Time(T)

4.Amount of Substance(mol)

5.Temperature(K)

                                                
                                                 DEFINITION OF KELVIN

* Unit of Temperature is kelvin
* Symbol of kelvin is K
* Dimension of Temperature is K


6.Electric Current(A)

                                                        DEFINITION OF AMPERE

* Unit of Current is ampere
* Symbol of ampere is A
* Dimension of Current is A


7.Luminous Intensity(Cd)

                                                       DEFINITION OF CANDELA

* Unit of Luminous Intensity is candela
* Symbol of candela is Cd
* Dimension of Luminous Intensity is Cd


Out of the above said 7 fundamental physical quantities,length,mass and time plays vital role in Astronomy.