The Doppler Effect is a phenomenon that allows one to measure an object's
A) temperature.
B) radius.
C) line-of-sight speed.
D) chemical composition.

Question

Quizplus · Accepted Answer

The Doppler Effect allows one to measure an object's line-of-sight speed by tracking shifts in the frequency of waves (e.g. light or sound) that bounce off the object. These frequency shifts are caused by the object's movement towards or away from the observer, altering the apparent wavelength of the waves. This effect is used in a variety of fields, ranging from astronomy to traffic monitoring.

The Doppler Effect Is a Phenomenon That Allows One to Measure