The ocean depth is measured by sending down sound waves which are reflected back from the bottom The...........

General Science (Easy) Physics

The ocean depth is measured by sending down sound waves which are reflected back from the bottom. The depth is found by measuring the time it takes for the sound to reach back. What are the waves called ?

sea-sonics

ultrasonics

subsonics

megasonics

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Explanation:

- Sound waves used for measuring ocean depth are commonly referred to as "sonar" waves.

- Option 2: Ultrasonics - Ultrasonic waves are sound waves with frequencies higher than the audible limit for humans (above 20 kHz). They are often used in sonar technology.

- Option 1: Sea-sonics - This is not a standard term in this context.

- Option 3: Subsonics - These are sound waves with frequencies below the human hearing range. They are not used for this purpose.

- Option 4: Megasonics - This term does not typically relate to sound wave frequencies for such applications.

Given the information, Option 2: Ultrasonics is the correct answer.