what is frequency
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In Physics
Frequency is the rate at which current changes direction per second. It is measured in hertz (Hz), an international unit of measure where 1 hertz is equal to 1 cycle per second. Hertz (Hz) = One hertz is equal to one cycle per second.
In Math
Frequency is the number of times a particular value occurs in a set of data.
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the frequency is the number of ascillation per unit time. it is used for defining the cyclic process like rotation, oscillation, wave etc . the completion of the cyclic process at particular interval of time is known as the frequency.
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