Which of the following observational techniques is most appropriate for measuring Doppler shifts?
A)timing (measuring how the amount of light changes with time)
B)imaging (taking a picture)
C)spectroscopy (taking a spectrum)

Question

Quizplus · Accepted Answer

Doppler shifts can be measured using spectroscopy by examining how the wavelengths of the emitted or absorbed radiation from celestial objects shift. This technique is well-suited for studying the motion of celestial objects and is commonly used in astronomy to measure the velocities of stars, galaxies, and other objects. Timing is not as useful for measuring Doppler shifts because it primarily focuses on changes in the amount of light emitted by an object and imaging is not as precise for measuring subtle shifts in wavelength.

Which of the Following Observational Techniques Is Most Appropriate for Measuring