Dimensional Analysis - Illustrative Examples Using This Tool

Seema Vats and C.K.Ghosh

Dimensional Analysis forms a very significant part of study of physics. The students are supposed to read this prior to themselves making inroads into cardinal areas of physics. Basically the students are taught that [M]. [L], [T] are the fundamental dimensions and the dimension of every other quantity can be derived from them. The other key factors which are highlighted are that every equation is dimensionally homogeneous. Dimension analysis helps us to understand link between the units/dimension of physical quantity. It gives very interesting results and helps to solve various unknown problems which would otherwise require a lot of experimental work. Through this article we shall cite quite a few examples to sensitize the students about some of the additional features of dimensional analysis which generally go-unnoticed.