questionedithistorytranslationsCurrent version This is the accepted version. added by Ts Dec. 10, 2018, 11:23 a.m. What physical phenomenon is shown in the picture? Euler spiral Fraser spiral Mach numberDoppler effectThe Doppler effect is the change in frequency or wavelength of a wave in relation to an observer who is moving relative to the wave source. It is named after the Austrian physicist Christian Doppler, who described the phenomenon in 1842. The Doppler effect is based on the principle of radar or ultrasound.TsShare and bring new players to the game!0Very uninterestingToo difficultPoorly writtenIncorrect or questionableCorrect this questionwikipedia → Doppler effect3Very interesting! wikipedia → Doppler effectreach: rather globalphysicsscienceVotes +1 Very interesting! I know +1 Very interesting! --- +1 Very interesting! M