Frequency is the number of complete cycles, oscillations, or vibrations that occur per unit time.
Definition:
Frequency measures how often a repeating event happens in a given time interval.
Formula:
f = 1 / T
Where:
- f = frequency
- T = time period (time taken for one complete cycle)
SI Unit:
- The SI unit of frequency is Hertz (Hz)
- 1 Hz = 1 cycle per second
Denotation:
- Frequency is commonly denoted by f
- Sometimes the Greek letter ν (nu) is also used
Examples:
- A pendulum completing 2 oscillations per second has a frequency of 2 Hz
- Sound waves and light waves are also characterized by their frequency
Conclusion:
Frequency is the number of cycles per second, denoted by f, and measured in Hertz (Hz).