Question

Which is measured when sonar is used to send sound waves into deep water?


interference of the transmitted and reflected waves

only the direction of the reflected wave

the time delay of returning echoes

refraction of the transmitted wave

Answer 1

When sonar is used to send sound waves into deep water, what is typically measured is **the time delay of returning echoes**. This time delay helps determine the distance to the seafloor or objects submerged in the water based on the speed of sound in water.