Frequency is measured in __________________________.

Frequency is measured in Hertz, which is the fundamental unit of frequency in the International System of Units (SI). One Hertz represents one cycle per second, making it a crucial unit for understanding how often an event occurs in a given time frame. In the context of various fields such as telecommunications, audio, and electronics, frequency indicates how often a signal oscillates or cycles within a second. While kilohertz and megahertz are also units used to express frequency, they are simply multipliers of Hertz, representing thousands and millions of cycles per second, respectively. Decibels, on the other hand, are used to measure sound intensity or signal power rather than frequency. Thus, Hertz is the most foundational and universally accepted measurement for frequency.