An 05 star has an Hα line present in its spectra. What color is the line
A)red
B)no color as the line is in the UV band
C)blue
D)no color as the line is in the infrared band

Question

Quizplus · Accepted Answer

The presence of an Hα line in a star's spectra indicates the emission of hydrogen gas. This emission line falls in the red part of the spectrum, specifically at a wavelength of 656.3 nanometers. Therefore, the color of the Hα line is red.

An 05 Star Has an Hα Line Present in Its