Definition:Frequency (Physics)
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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:
- $\mathsf T^{-1}$
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
- 2014: Christopher Clapham and James Nicholson: The Concise Oxford Dictionary of Mathematics (5th ed.) ... (previous) ... (next): frequency (in mechanics)