Question

define periodic time and frequency between V A and v b
plz give me perfect ans​

Answer 1

Answer:

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Frequency, f, is how many cycles of an oscillation occur per second and is measured in cycles per second or hertz (Hz). The period of a wave, T, is the amount of time it takes a wave to vibrate one full cycle. These two terms are inversely proportional to each other: f = 1/T and T = 1/f

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Answer 2

Explanation:

A graph of the air pressure at a certain point might look like this: The arrow indicates one cycle of the sound.