Question

The device which uses ultrasonic sound waves to measure the distance, direction, and speed of underwater objects is:

• A. $\text{LASER}$
• B. $\text{SONAR}$
• C. $\text{RADAR}$
• D. $\text{MILER}$

Answer 1

The correct option is B $\text{SONAR}$

The device which used ultrasonic waves to measure the distance, direction and speed of underwater objects is known as $\text{SONAR}$. $\text{SONAR}$ stands for $\text{SOund NAvigation and Ranging}$. It is helpful for exploring and mapping the seabed or the ocean floor. $\text{LASER}$and $\text{RADAR}$ use light instead of sound for detecting enemy aircrafts and other such things in the sky. And $\text{MILER}$ is not even a real thing.