Question

state the application of echo

Answer 1

sonar system, game or some gadgets

Answer 2

1. Since bats cannot see from their eyes, so they use the technique of echolocation to locate their ways. Bats can understand from the reflected sound if there is any object before it. It hunts its prey by using this technique.

2. This technique is also used to find the depth of sea or distance of submarines.

3. It also helps to estimate the distance or hills and mountains.

4. This technique is also very helpful in the medical field as well. Doctors used this phenomenon in cardiography, sonogram and many other medical diagnosis. 

Hope it will help you dear one...