- The rate at which something occurs over a particular period of time or the number of occurrences of a repeating event per unit time.
- Frequency is an important parameter used in science and engineering to specify the rate of oscillatory and vibratory phenomena, such as mechanical vibrations, audio signals,radio waves and light.
- We can also describe frequency as the difference in strike of spatial frequency and angular frequency.
- Angular frequency denoted by the Greek letter ω(omega) is defined as the rate of change of angular displacementΘ or the rate of change of phase of a sinusoidal waveform.
- Spatial frequency is an analogous to temporal frequency, but the time axis is replaced by one or more spatial displacement axes
Eg:- dΘ/dx=k.
Notes
