For light,a red shift indicates that the light source is moving
A)toward you.
B)away from you.
C)at right angles to you.
D)actually,all of these
E)none of these

Question

Quizplus · Accepted Answer

A red shift in light indicates that the light source is moving away from the observer. This is due to the Doppler effect, which causes the wavelength of light to appear longer when the source is moving away.

For Light,a Red Shift Indicates That the Light Source Is