According to the Doppler effect,
A) spectral lines are split into two or more wavelengths when the source of the light is in a strong magnetic field.
B) the wavelength of light is shifted to a longer wavelength if the source of the light is moving toward the observer.
C) the wavelength of peak emission of light from a source changes as the temperature of the source changes.
D) the wavelength of light is shifted to a shorter wavelength if the source of light is moving toward the observer.

Question

Quizplus · Accepted Answer

The Doppler effect describes how the wavelength of light (or sound) changes due to the relative motion of the source and the observer. If the source is moving toward the observer, the wavelengths are compressed, leading to a shift to shorter wavelengths.

According to the Doppler Effect