The time period of a sound wave is 0.2 sec. Calculate its frequency and state whether the sound is audible or not.
Answers
Answer:
A time period (denoted by 'T' ) is the time taken for one complete cycle of vibration to pass a given point. As the frequency of a wave increases, the time period of the wave decreases. The unit for time period is 'seconds'.
Explanation:
The relationship you are describing is basically the Doppler Effect. As an sound source moves toward us, the distance between the wave peaks descreases, making it sound highter pitched. ... Then as the sound source passes us and moves away again, the wavelength increases and the frequency and the pitch decrease.
The relationship of the speed of sound, its frequency, and wavelength is the same as for all waves: vw = fλ, where vw is the speed of sound, f is its frequency, and λ is its wavelength. ... The greater the density of a medium, the slower the speed of sound.