ABSTRACT

Oscillations and vibrations constitute one of the major areas of study in

physics. Most systems can oscillate freely. Generally, heavier ones have low oscillation frequency while the lighter ones have large frequencies. The vari-

ety of phenomena exhibiting repetitive motions have been discussed nicely by

French [1]:

Wave Trends

All the above phenomena have one thing in common, i.e., repetitive motion or periodicity. The same pattern of displacement is repeated over and over again. It can be simple or complicated. Irrespective of the nature of oscillations, the pattern is generally represented by plots where the horizontal axis represents the steady progress of time. Such pictures make it easy to recognize one cycle or one period of oscillation, which keeps on repeating.