This image was acquired from
wikimedia. It was marked as Public Domain or CC0 and is free to use. To verify, go to the source and check the information there.
Keywords from Image Description:
Doppler effect.svg Doppler effect November UTC en Waves emitted by source moving from the right to the left The frequency is higher on the left ahead of the source than on the right Ondes mies par une source se dplaant de la droite vers la gauche La frquence est plus leve gauche l'avant de la source qu' droite rdo fal poruszajce