Which of the following is not a correct statement about Infrasound?
Which of the following is not a correct statement about Infrasound?
[A]Infrasound has a frequency lower than 50 hertz
[B]Infrasound is produced / detected by elephants and whales
[C]Infrasound can travel longer distances than high frequency sound waves
[D]All are correct
Infrasound has a frequency lower than 50 hertz
Infrasound has a frequency lower than 20 hertz . Though it cannot be heard by humans, animals such as elephants, rhinos, alligators and whales produce infrasound. One interesting feature of these sound waves is that they can travel longer distances than high frequency waves. Avalanches and earthquakes also produce infrasound.
