A spectrograph measures the:
A) speed of a light beam.
B) energy carried by each component wavelength of a light beam.
C) polarization of a light beam.
D) atmospheric distortion experienced by a light beam.

Question

Quizplus · Accepted Answer

A spectrograph measures the different wavelengths and frequencies present in a light beam, allowing the determination of the energy carried by each component. This information can be used to identify the chemical composition and temperature of the source emitting the light.

A Spectrograph Measures The