For what discovery did Johannes Stark receive his Nobel Prize?
Discovery of gravity
Doppler effect in canal rays and the splitting of spectral lines in electric fields
Discovered the electron
Discovered the Higgs Boson
Answer
Johannes Stark was awarded the Nobel Prize in Physics in 1919 for his discovery of the Doppler effect in canal rays and the splitting of spectral lines in electric fields. The Doppler effect is the change in frequency of a wave, such as sound or light, as the source of the wave moves relative to the observer.
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