Oscillations

• Periodic motion $\to$ Motion which repeats itself after regular intervals of time
• Oscillatory motion $\to$A body in oscillatory motion moves to and fro about its mean position in a fixed time interval.

• Period (T): It is the interval of time after which a motion is repeated. Its unit is seconds (s).

• Time period $\to$ Time required for one complete oscillation

     

• Frequency : Number of oscillations in one second. The unit is Hertz.

• An oscillatory motion is said to be simple harmonic, when the displacement (x) of the particle from origin varies with time given as,

• Displacement is sinusoidal function of time.
• Displacement − A …