Asked by julie
Which can be categorized as a use of plasma in technology?
taking pictures of solar flares
observing the aurora borealis
making fluorescent lights for houses
making telescopes to observe distant stars
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making fluorescent lights for houses
Fluorescent lamps work by creating a low-pressure mercury vapor plasma; electrons in the plasma produce ultraviolet light that excites a phosphor coating to emit visible light. Observing aurora or solar flares is studying natural plasma, and making telescopes is not a use of plasma.
Fluorescent lamps work by creating a low-pressure mercury vapor plasma; electrons in the plasma produce ultraviolet light that excites a phosphor coating to emit visible light. Observing aurora or solar flares is studying natural plasma, and making telescopes is not a use of plasma.
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