What is the SI unit of frequency?

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seconds

metre

hertz

metre per second

answer is C.

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Detailed Solution

The number of times a repeated event occurs per unit of time is known as frequency. Frequency refers to the number of times a wavelength is repeated per second in the case of light.

The hertz (symbol) is a frequency unit that measures the number of cycles per second of a periodic occurrence. Heinrich Hertz, a German scientist, is the name of this unit.

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