Question

1)The frequency of subsonic sound is
a) more than 20Hz
b) 100Hz
c) less than 20Hz
d) more than 20,000Hz​

Answer 1

Answer:

Sound of frequency below 20 Hz is called as infrasonic. Sound of frequency above 20 kHz is called as ultrasonic whereas sound of frequency in between 20 Hz to 20 kHz is called as audio sound.