Question

Q. 2. What is the range of frequencies associated with (a) infrasound (b) ultrasound?
Ans.(a) For infra sound the frequency range is less than 20 Hz.
(b) For ultra sound the frequency range is more than 20 KHz (i.e. 20,000 Hz)​

Answer 1

Answer:

Hey, you have already mentioned the answer.

(a) For infra sound the frequency range is less than 20 Hz.

(b) For ultra sound the frequency range is more than 20 KHz (i.e. 20,000 Hz)

Answer 2

Answer:

Frequencies less than 20Hz is Infrasound.

Frequencies Greater than 20000Hz is ulltrasound.

We cannot hear Ultrasound as well as infrasound.