Audible Sounds
Sounds which can be heard by us are called Audible Sounds
Example
Range of Audible Frequency for Human ear is 20 Hz to 20000 Hz
It means human beings can hear sound having frequency from 20 Hz to 20000 Hz
Inaudible Sounds
Sounds which we are not able to hear are called Inaudible Sounds
Example
Human beings cannot hear
Sound having frequency less than 20 Hz (Called Infrasonic or Infrasound)
Or
Having Frequency more than 20000 Hz (Called Ultrasonic or Ultrasounds)
Questions
NCERT Question 3 (d) - In the following statements, tick T against those which are true, and F against those which are false:
For human ears, the audible range is 20 Hz to 20,000 Hz. (T/F)
