define of frequency??
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Frequency is the number of occurrences of a repeating event per unit of time. It is also referred to as temporal frequency, which emphasizes the contrast to spatial frequency and angular frequency. Frequency is measured in units of hertz which is equal to one occurrence of a repeating event per second.
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Frequency:- The Number of compressions and rarefaction taken together passing through a points in one second .
Its SI unit is Hertz.
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