Final answer:
A graph that represents the Sun's visible light spectrum would show a continuous spectrum with an unbroken sequence of visible wavelengths and distinct absorption lines caused by various elements in the Sun's atmosphere.
Step-by-step explanation:
The graph that could represent a portion of the sun's visible light spectrum would depict a continuous spectrum, with all wavelengths of visible light present. Since the Sun is a glowing solid (like a star), it emits photons over a wide range of energies, resulting in an unbroken sequence of colors when viewed through a prism or spectrometer. Additionally, the Sun's spectrum includes dark absorption lines known as absorption lines, which appear because various elements in the solar atmosphere absorb light at certain wavelengths.
In contrast, if you were to analyze the light from a sodium lamp, you would observe a line spectrum, which consists of only a few discrete wavelengths, corresponding to the specific transitions of electrons in the sodium atoms. Neon lights would also show discrete lines, whereas a household lightbulb or an ordinary household flashlight could have a continuous spectrum similar to blackbody radiation, with all visible wavelengths present.