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.
sonar
A)to find the depth of the sea b)the sonar device measures the time taken by the ultrasonic sound to travel from the ship to the bottom of the sea .
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.
they are uses in two ways sonar and sound waves. Sonar to find where your baby is inside you, and sound waves to know if there is anything under the boat.
The word SONAR - is an acronym derived from the phrase SOund Navigation And Ranging. in simple terms - a sound 'pulse' is sent out from the submarine or ship - and the time taken for the pulse to return indicates the distance to the object of interest.
sonar consist of a transmitter and a data and it is installed in a boat or a ship
sattelite with sonar
A sonar is Fitted into a ship to detect how deep the water is
Sonar
Scuba Divers use a Sonar to find treasure or a hidden ship.
a ship and a boat are the same thing,
sonar
A fishing boat using sonar to locate fish is employing reflection. The technique that uses sound propagation to detect objects under the water.
The stern is the rear or aft part of a ship or boat.
airborne, surface ship, and submarine-based sonar systems including depth-finding equipment, guidance hydrophones, sonabuoys, sonar fish finders, navigation and mapping sonar, and anti-submarine sonar equipment
While there isnt really a legal definition of what constitutes a boat or a ship, seamen generally go by the principle definition that a BOAT can be carried by a SHIP but a SHIP cannot be carried by a BOAT.
boat