Definition:Frequency (Physics)

From ProofWiki
Jump to navigation Jump to search

Definition

Let $\map f t$ be a periodic function of time $t$.


The frequency of $f$ is the number of periods of $f$ that occur during a unit time interval.


Dimension

The dimension of measurement of frequency is: $T^{-1}$.


Units

The SI unit of measurement of frequency is the hertz $\mathrm {Hz}$:

$1 \ \mathrm {Hz} = 1 \ \mathrm{s}^{-1}$

that is, $1$ per second of time.


Sources