APPLICATION OF DIMENSIONAL ANALYSIS

 (1) To find the unit of a physical quantity in a given system of units.

 (2) To find dimensions of physical constant or coefficients.

(3) To convert a physical quantity from one system to the other.

(4) To check the dimensional correctness of a given physical relation: This is 

based on the ‘principle of homogeneity’. According to this principle the 

dimensions of each term on both sides of an equation must be the same.

(5) To derive new relation