Question

which scientists give the frequency​

Answer 1

Answer:

Usually frequency is expressed in the hertz unit, named in honour of the 19th-century German physicist Heinrich Rudolf Hertz, one hertz being equal to one cycle per second, abbreviated Hz; one kilohertz (kHz) is 1,000 Hz, and one megahertz (MHz) is 1,000,000 Hz.

Answer 2

Answer:

Heinirich Rudolf Hertz .

Explanation:

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