What is the range of frequencies associated with,
(a) Infrasound?
(b) Ultrasound?
(a) Sound of frequency less than 20 Hz is called infrasound.
(b) Sound of frequency higher than 20 kHz is called ultrasound.
What is the audible range of the average human ear?
What is the audible range of the average human ear?
What is sound and how is it produced?
Describe with the help of a diagram, how compressions and rarefactions are produced in air near a source of sound.
