The change in wavelength (and therefore frequency)of waves that happens if the source of the waves is moving is explained by the
A) Big Bang theory.
B) nebular theory.
C) expanding Universe theory.
D) Doppler effect.

Question

Quizplus · Accepted Answer

The change in wavelength (and therefore frequency) of waves that happens if the source of the waves is moving is explained by the Doppler effect.

The Change in Wavelength (And Therefore Frequency)of Waves That Happens