Question

What is echo rangeing?

Answer 1

Echo ranging is the computation of distances by the method of echo. In echo ranging a sound is sent towards the target and the time of echo is measured. With this information one can calculate the distance of the target. By using the formula v = 2D/t , where v = speed of sound in air which is equal to 332 m/s, t = time taken for the echo to return., D = distance.

Thus, D = vt/2