Period Versus Frequency
As a matter of convenience, longer and slower waves, such as ocean surface waves, tend to be described by wave period rather than frequency. Short and fast waves, like audio and radio, are usually described by their frequency instead of period. These commonly used conversions are listed below:
| Frequency | 1 mHz (10−3) | 1 Hz (100) | 1 kHz (103) | 1 MHz (106) | 1 GHz (109) | 1 THz (1012) |
|---|---|---|---|---|---|---|
| Period (time) | 1 ks (103) | 1 s (100) | 1 ms (10−3) | 1 µs (10−6) | 1 ns (10−9) | 1 ps (10−12) |
Read more about this topic: Frequency
Famous quotes containing the words period and/or frequency:
“Words convey the mental treasures of one period to the generations that follow; and laden with this, their precious freight, they sail safely across gulfs of time in which empires have suffered shipwreck and the languages of common life have sunk into oblivion.”
—Anonymous. Quoted in Richard Chevenix Trench, On the Study of Words, lecture 1 (1858)
“The frequency of personal questions grows in direct proportion to your increasing girth. . . . No one would ask a man such a personally invasive question as “Is your wife having natural childbirth or is she planning to be knocked out?” But someone might ask that of you. No matter how much you wish for privacy, your pregnancy is a public event to which everyone feels invited.”
—Jean Marzollo (20th century)