Question

define ultra and infrasonic sound ​

Answer 1

Explanation:

Sounds having frequency higher than 20,000 Hz are known as ultrasonic sounds. Some animals like bats, dogs and dolphins can hear ultrasonic sounds. Infrasonic sound: Sounds having frequency lower than 20 Hz are known as infrasonic sounds.

Answer 2

Answer:

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Sounds having frequency higher than 20,000 Hz are known as ultrasonic sounds. Some animals like bats, dogs and dolphins can hear ultrasonic sounds. Infrasonic sound: Sounds having frequency lower than 20 Hz are known as infrasonic sounds.

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