Simple Harmonic Motion

  1. Amplitude :-   It is maximum displacement of a body from its mean position. The amplitude is always equal to the radius of the circle.  2. Periodic time : -  It is the time taken for one complete revolution of the particle. Mathematically , periodic time = 2π/w seconds  3.   Frequency :- It is the number of cycles per second and it is the reciprocal of time period. Mathematically,               Frequency =  1/Perodic time                                 = w/2π Hz Note:-        In S. I. units, the unit of frequency is hertz (briefly written as  He)  which is equal to one cycle per second