Question

ultrasound frequency has less than 20 hz statement is true or false reason​

Answer 1

Answer:

False

Explanation:

The statement "Ultrasound's frequency is less than 20 Hz." is false. It's frequency is greater than 20 Hz.

Answer 2

Answer:

$\huge\pink{False}$

The sounds having frequency less than 20Hz are called infrasonics.

The sounds having frequency greater than 20kHz are called ultrasonics.

Human beings can hear only those sounds which are in the frequency range of 20Hz to 20kHz.

Thus the infrasonic and ultrasonic sounds are not audible to humans.

Explanation:

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