Glowing plasma is evident in the light from
A)a fluorescent lamp.
B)the aurora borealis (northern lights).
C)some TV screens.
D)all the above
E)none of the above

Question

Quizplus · Accepted Answer

Fluorescent lamps contain gas that emits UV light, which is then absorbed by the phosphor coating inside the lamp, causing it to emit visible light in the form of glowing plasma. The aurora borealis is a natural phenomenon caused by particles from the sun colliding with the Earth's atmosphere, producing glowing plasma in the form of colorful lights. Some TV screens use plasma technology to generate light, which produces glowing plasma as well. Therefore, all of the above choices (fluorescent lamps, the aurora borealis, and some TV screens) show evidence of glowing plasma.

Glowing Plasma Is Evident in the Light from