Question

What are audible sound waves ?
A. Having frequency less than 20 Hz
B. Having frequency between 20 Hz to 20000 Hz
C. Having frequency more than 20000 Hz
D. None of above

Answer 1

Having Frequency between 20Hz to 20000Hz

Answer 2

ans is B because the reason is Audible sound. 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. The human ear is sensitive to every minute pressure difference in the air if they are in the audible frequency range

ans