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Measurements and Experimentation — PHYSICS STD 9 — Question

ICSE BoardEnglish MediumSTD 9PHYSICSMeasurements and Experimentation1 Mark
Question
Define the term frequency.
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Answer

The number of oscillations made in one second is called the frequency. It is denoted by $f$ or $n.$ Its unit is per second $(s^{-1})$ or hertz $(Hz).$

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