As you recede from a steady light source, the wavelength of the emitted light appears
A)longer.
B)shorter.
C)the same.

Question

Quizplus · Accepted Answer

This is an example of the Doppler effect for light. As the observer moves away from the light source, the wavelength of the emitted light appears longer, leading to a shift towards the red end of the spectrum, known as a redshift. This effect is commonly observed in astronomy, where distant galaxies appear to be moving away from us and exhibit a redshift in their spectra.

As You Recede from a Steady Light Source, the Wavelength