Either phrase could be considered accurate, although technically you do need to detect the "echo" for echolocation to work. Just having a reflection of sound waves is not enough for echolocation to occur.Fiona Rozario said:
SONAR stands for Sound Navigation And Ranging and is a technology used to detect objects underwater. It works by emitting sound waves, which then bounce off objects and return to the source. The time it takes for the waves to return and the intensity of the return signal are used to calculate the distance and location of objects.
Echo and reflection both refer to the bounced sound waves in SONAR. Echo specifically refers to a distinct, audible repetition of the original sound, while reflection can also include weaker or distorted signals. Echoes are often used to detect larger objects, while reflections can reveal smaller or more complex structures.
The accuracy of SONAR depends on various factors such as the frequency of the sound waves, water conditions, and the size and shape of the object being detected. In general, SONAR can accurately detect objects within a few meters, but this can vary depending on the specific circumstances.
While SONAR is primarily used for underwater navigation and detection, it can also be used for other purposes such as measuring the depth of bodies of water, mapping the ocean floor, and studying marine life. It has also been adapted for use in medical imaging and in some military applications.
One potential drawback of using SONAR is that it can cause disturbances in marine life, particularly in sensitive species such as dolphins and whales. It also has a limited range and may not be able to detect smaller objects or those that are buried or hidden. Additionally, factors such as background noise and water conditions can affect the accuracy of SONAR readings.