Answer :

Final answer:

Sonar technology enables submarines to detect objects underwater by analyzing sound wave echoes, using ultrasonic frequencies for precise measurements.


Explanation:

Sonar (Sound Navigation And Ranging) is a technology used by submarines to detect objects underwater by sending out sound waves and analyzing the echoes that bounce back. Submarine sonar utilizes ultrasonic frequencies in the range of 30.0 to 100 kHz, allowing for distance and size information to be obtained effectively. The speed of sound in water is a crucial factor in determining the distance between the submarine and the bottom of the ocean, aiding in navigation and avoiding obstacles.


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