Question

what is sonar??????? ​

Answer 1

Answer:

Sonar is a technique that uses sound propagation to navigate, communicate with or detect objects on or under the surface of the water, such as other vessels.

Answer 2

Explanation:

1. A sonar device sends pulses of sound waves down through the water. When these pulses hit objects like fish, vegetation or the bottom, they are reflected back to the surface. The sonar device measures how long it takes for the sound wave to travel down, hit an object and then bounce back up.
2. Sonar is a way of communicating, navigating, and detecting objects by using sound propagation. For the remainder of this lesson, we will focus on underwater sonar, which is used by submarines and some aquatic animals to perform the previously mentioned tasks.
3. Sonar uses sound waves to 'see' in the water.
4. Sonar uses sound waves to 'see' in the water.There are two types of sonar—active and passive.

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