What type of signal is measured in a sonar system to determine the depth of the ocean?
A. absorption of sound waves by underwater features
B. reflection of sound waves by underwater features
C. absorption of electromagnet waves by underwater features
D. reflection of electromagnet waves by underwater features
I think that it's A?
Think what you wish, but you are wrong.
Go to www.answers.com.
Look up SONAR.
Re-think your answer.
Thank you.
To determine the depth of the ocean in a sonar system, the signal that is measured is the reflection of sound waves by underwater features. Therefore, the correct answer is B.
Sonar stands for SOund NAvigation and Ranging, and it is a technique that uses sound propagation to navigate, communicate, and detect objects underwater. In this process, a sound wave is produced and transmitted into the water. This sound wave then travels through the water, and when it encounters an underwater feature such as the bottom of the ocean or any objects or organisms, it gets reflected back towards the source.
By measuring the time it takes for the sound wave to travel to the underwater feature and back to the sonar receiver, the depth of the ocean can be calculated. The longer it takes for the sound wave to return, the deeper the water is.
So, in summary, the depth of the ocean is determined in a sonar system by measuring the reflection of sound waves by underwater features, making the correct answer B.