in which all places the effect of doppler effect is made use of.

APPLICATIONS OF DOPPLER'S EFFECT - RESULTApplications of Doppler's effect:
1. Sirens: The siren on a passing emergency vehicle will start out higher than its stationary pitch, slide down as it passes, and continue lower than its stationary pitch as it recedes from the observer.

2. Astronomy: The Doppler effect for electromagnetic waves such as light is of great use in astronomy and results in either a so-called redshift or blueshift. It has been used to measure the speed at which stars and galaxies are approaching or receding from us; that is, their radial velocities. This may be used to detect if an apparently single star is, in reality, a close binary, to measure the rotational speed of stars and galaxies, or to detect exoplanets.

3. Other than these Doppler's effect is being used in Radar, Medical imaging and blood flow measurement, Flow measurement, Velocity profile measurement, Satellite communication, Audio, Vibration measurement, Developmental biology etc.