4. Define amplitude, time period and frequency of a sound.

1.	4. Define amplitude, time period and frequency of a sound.
Answer» Amplitude is the maximum displacement of points on a wave, which you can think of as the degree or intensity of change. ..Atime period(denoted by 'T' ) is thetimeneeded for one complete cycle of vibration to pass in a given point. As the frequency of a wave increases, thetime periodof the wave decreases. It is only useful or meaningful for musicalsounds, where there is a strongly regular waveform.Frequencyis measured as the number of wave cycles that occur in one second. The unit offrequencymeasurement is Hertz (Hz for short). Afrequencyof 1 Hzmeansone wave cycle per second.

Answer»

Amplitude is the maximum displacement of points on a wave, which you can think of as the degree or intensity of change. ..Atime period(denoted by 'T' ) is thetimeneeded for one complete cycle of vibration to pass in a given point. As the frequency of a wave increases, thetime periodof the wave decreases.

It is only useful or meaningful for musicalsounds, where there is a strongly regular waveform.Frequencyis measured as the number of wave cycles that occur in one second. The unit offrequencymeasurement is Hertz (Hz for short). Afrequencyof 1 Hzmeansone wave cycle per second.

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