Question

Sonar works by

measuring the refraction rate of sound waves between objects
measuring the distance between sound waves
measuring the reflection rate of sound waves off objects
measuring the time between sound waves

Answer 1

the answer to "sonar works by" is:

C. measuring the reflection rate of sound waves off objects

Step-by-step explanation:

An acoustic transducer is used in modern active sonar systems to create a sound wave that is reflected off target objects.

Answer 2

Answer: C

Explanation: Echoes are produced when a sound wave is reflected back on hitting an obstacle in its path. The reflected sound wave will then travel back to the source. This depicts the process involved in the working of the SONAR.