Question

which of these sound of frequency is of lower pitch​

Answer 1

Explanation:

Sounds with frequencies below 20 hertz are called infrasound. Infrasound is too low-pitched for humans to hear. Sounds with frequencies above 20,000 hertz are called ultrasound

Answer 2

Answer:

sounds and frequencies below 20 hertz are called infra sound . infrasound is too low pitched for human to hears . sounds and frequencies below 20 ,000 hertz are called ultra sounds its too high pitched for human to hears

Explanation:

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