Question

explain the doppler effecf

Answer 1

When the object producing sound is far away from us, we hear a lower frequency. But when the object is near to us, we hear a higher frequency. By finding the difference between the transmitted wave and reflected wave, we can find the distance to the object. That is echo ranging. But instead of finding the distance we find velocity , and that is called Doppler processing. This is used by bats, airplane and for speeding vehicles. Hope it is useful please mark it as brainliest if you find it useful friend :-)

Answer 2

Doppler effect is change in frequency or wavelength of a wave for an observer moving relative to wave source. Example-
Doppler shift is a change of pitch heard when a vehicle sounding a horn approaches and recedes from an observer. Hope you like my answer and brainliest it.