6.

Sonar is used to inspect pipelines and bridge foundations. In this scenario, sonar takes advantage of the fact that (1 point)

A.sound waves can reflect.***
B.sound waves can diffract.
C.sound waves can spread out.
D.sound waves can refract.

I agree

thx

A is the answer

What is the answer?

To answer this question, we need to understand what sonar is and how it works.

Sonar stands for Sound Navigation and Ranging, and it is a technology that uses sound waves to detect and locate objects underwater. The key principle behind sonar is that sound waves can reflect off objects and return to the source. Based on the time it takes for the sound waves to travel out and back, sonar can determine the distance to the object.

In the case of inspecting pipelines and bridge foundations, sonar is used to send sound waves into the water and then listens for the echoes that bounce back. The fact that sound waves can reflect is crucial for sonar to work in this scenario. By analyzing the echoes, the sonar system can create a detailed image of the pipeline or bridge foundation, helping to detect any damage or anomalies.

So, the correct answer is A. Sound waves can reflect.