Glossary term: 频率
Description: 频率是单位时间内的振荡次数，以周期/秒（或赫兹 [Hz]）为单位。它是任何波（声波、光或引力波）的一般属性。波的频率和波长的关系式为频率=v/波长，其中v是波的速度。在讨论电磁辐射时，天文学家通常会使用频率或波长（有时可以互换）。
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Term and definition status: The original definition of this term in English have been approved by a research astronomer and a teacher The translation of this term and its definition is still awaiting approval
The OAE Multilingual Glossary is a project of the IAU Office of Astronomy for Education (OAE) in collaboration with the IAU Office of Astronomy Outreach (OAO). The terms and definitions were chosen, written and reviewed by a collective effort from the OAE, the OAE Centers and Nodes, the OAE National Astronomy Education Coordinators (NAECs) and other volunteers. You can find a full list of credits here. All glossary terms and their definitions are released under a Creative Commons CC BY-4.0 license and should be credited to "IAU OAE".
