What does the acronym SONAR stand for?

The acronym SONAR stands for "Sound, Navigation, and Ranging." This technology is widely used in naval applications for detecting and locating objects underwater, such as submarines and underwater terrain.

The "Sound" component refers to the use of sound waves as the primary means of detection. In underwater environments, where visual detection is limited, sound is an effective medium due to its ability to travel long distances through water.

"Navigation" pertains to the technique's application in helping vessels determine their location or the position of other submerged objects. This is crucial for safe operation and mission success.

"Ranging" involves calculating the distance to an object based on the time it takes for sound waves to travel to the object and back. By measuring this time delay, operators can effectively determine how far away the detected object is.

The other options do not accurately describe the function or purpose of SONAR, thus confirming that "Sound, Navigation, and Ranging" is the correct representation of the acronym.