'He discovered that the observed frequency of light waves is affected by the relative motion of the source & detector'
Doppler
SCIENTISTS: He discovered that the observed frequency of light waves is affected by the relative motion of the source & detector
He discovered that the observed frequency of light waves is affected by the relative motion of the source & detector
He discovered that the observed frequency of light waves is affected by the relative motion of the source & detector
SCIENTISTS
Doppler
SCIENTISTS