What is the SI unit used to measure the frequency of a wave, such as sound or radio signals?
AHertz
BAmpere
CNewton
DDecibel
Explanation
Frequency, meaning how many complete wave cycles occur each second, is measured in hertz, named after physicist Heinrich Hertz, who made important contributions to the study of electromagnetic waves. One hertz represents one cycle per second, and radio stations, for example, broadcast at specific frequencies measured in kilohertz or megahertz. Frequency is a key property used to describe everything from sound pitch to the electromagnetic spectrum, including radio waves and visible light. Explore more Everyday Science MCQs on mcqstutor to keep practicing.

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