Which has the higher frequency - ultrasonic sound or infrasonic sound ?
Ultrasonic has a higher frequency.
What is : periodic time, simple harmonic motion , wave, wave length, amplitude, frequency, wave velocity, audible sound, infrasonic sound, ultrasonic sound, echo and reverberation
Sound waves whose frequency is greater than 20000 Hz is called ___.
Sounds having frequencies lower than 20 Hz are called: