explain inaudible, audible and ultrasonic sound
Answers
Answer:
Inaudible sound
Human ear cannot detect sound frequencies less than 20 vibrations per second i.e. 20 Hz. ... The low-frequency sound which the human ear cannot detect is also known as infrasonic sound. Whereas the higher range inaudible frequency is also known as ultrasonic sound
Answer:
inaudible: Human ear cannot detect sound frequencies less than 20 vibrations per second i.e. 20 Hz.The low-frequency sound which the human ear cannot detect is also known as infrasonic sound. Whereas the higher range inaudible frequency is also known as ultrasonic sound.
Audible: The human ear can easily detect frequencies between 20 Hz and 20 kHz. Hence, sound waves with frequency ranging from 20 Hz to 20 kHz is known are audible sound.As we grow older and are exposed to sound for a longer period of time, our ears get damaged and the upper limit of audible frequencies decreases. For a normal middle-aged adult person, the highest frequency which they can hear clearly is 12-14 kilohertz.
Ultrasonic: Sound wave is a vibration that is transmitted through a medium, such as air, water, and metals. Ultrasonic wave is defined as “inaudible sound with high frequency for human” the frequency of which generally exceeds 20 kHz. These days, sound wave which is not intended to be heard is also called ultrasonic wave.