Question

The sound waves used to sonar are?

infrasound
ultrasound
audible

Answer 1

Sonar is, in fact, ultrasound, and works in the same way as an ultrasound device can create an image of a developing fetus. It is not audible, as we cannot hear it, and not infrasound, as infrasound falls into the category of audible sound (we can hear it, although it is at the low-frequency limit of our hearing).

Answer 2

Ultrasound.

Step-by-step explanation:

Hello,

In this case, it is necessary to remember that ultrasound is a high-wave frequency sound that is higher to that the human ear can notice. It covers wave frequencies higher than 20,000 waves per second, or 20,000 hertz (Hz). Furthermore, we are not able to hear ultrasound, even do, it is helpful to humans and some other animals in the detection of non-visible surroundings.

Best regards.