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Sonar is the technique of listening to sounds underwater to detrmine what is there.

In passive sonar, objects not generating any sound will not be detected.

Active sonar means that sound waves are generated and emitted. The device then listens for the sound being reflected back. That detects objects such as obstructions/rocks as well as other boats or underwater objects.

The reflected wave is measured and the time delay noted as well as the direction of the reflected sound wave. These give the user a very good idea of the type, size as well as speed of the object.

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What are the applications for sonar?

Sonar is used in various applications, including underwater mapping, navigation, fish finding, underwater communication, and military purposes such as detecting submarines. It works by emitting sound waves and analyzing the echoes to determine the location, size, and composition of objects underwater.


How does sonar detect water?

Sonar works by emitting sound waves into the water that bounce off objects and reflect back to the sonar device. By measuring the time it takes for the sound waves to return, sonar can determine the distance to the objects and create a picture of the underwater environment.


How does sonar work using sound energy?

Sonar works by emitting sound waves from a transducer into the water. These sound waves travel through the water until they encounter an object, at which point they bounce back to the sonar device. By measuring the time it takes for the sound waves to return, the sonar device can calculate the distance to the object.


What is special radar that works underwater?

A special type of radar called sonar is used to detect objects underwater by emitting sound waves and detecting their reflections. Sonar is commonly used in applications such as navigation, communication with submarines, and mapping the ocean floor.


What is the differences of an active sonar and passive sonar?

Active sonar sends a signal out from a source and when it encounters an object the signal reflects back to the source. This can be detected by the object it is reflecting off of like a ship or submarine. Passive sonar is simply putting a microphone in the water and listening. It is also undectable.