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<p>of the unit's most common uses are in the description of <a href="page.php?w=periodic_waveform">periodic waveform</a>s and <a href="page.php?w=musical_tone">musical tone</a>s, particularly those used in <a href="page.php?w=radio">radio</a>- and audio-related applications. It is also used to describe the <a href="page.php?w=clock_speed">clock speed</a>s at which computers and other electronics are driven. The units are sometimes also used as a representation of the <a href="page.php?w=photon_energy">energy of a photon</a>, via the <a href="page.php?w=Planck_relation">Planck relation</a></p><p>
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