Sonar full form: SONAR stands for Sound Navigation

SONAR stands for Sound Navigation and Ranging, a technique using sound waves for underwater navigation and detection. Learn about the history, working principle, types and benefits of SONAR with examples and diagrams. The full form of SONAR is Sound Navigation and Ranging. It is a technique that uses sound propagation (generally underwater, as in submarine navigation) to navigate, communicate or detect other vessels and detect objects below or on the surface of the water. The correct answer is option 2, i.e. Sound Navigation and Ranging. Key Points SONAR stands for Sound Navigation and Ranging. It is helpful for exploring and mapping the ocean because sound waves travel farther in the water than do radar and light waves. There are two types of sonar — Active and Passive. Active SONAR :- Active sonar device emits an acoustic signal or pulse of sound into the water. If an object is in the path of the sound pulse, the sound bounces off the object and returns an ... Sonar ( sound navigation and ranging or sonic navigation and ranging) [2] is a technique that uses sound propagation (usually underwater, as in submarine navigation) to navigate, measure distances (ranging), communicate with or detect objects on or under the surface of the water, such as other vessels. [3]