what is meant by infrasonic and ultrasonic wave
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Infrasonic Sound has a frequency less than the audible frequency range. Frequencies are less than 20 Hz. Ultrasonic Sound has a frequency greater than the audible frequency range. Frequencies are more than 20000 Hz.
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Hi friend_______,
Infrasonic waves:
★ These are sound waves with frequency below 20 Hz that cannot be heard by human ear.
★ Eg: Waves produced during earthquake, ocean waves, sound produced by whales, etc..
Ultrasonic waves:
★ These are sound waves with frequency greater than 20 kHz. Human ear cannot detect these waves.
★ Waves produced by bats is the best example for Ultrasonic waves.
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