OpenStudy (anonymous):

Sodium-vapor lights are incandescent bulbs filled with a gas to make the filament last longer. a. true b. false

2 years ago
OpenStudy (anonymous):

Is it true

2 years ago
OpenStudy (anonymous):

No it is not true. There is no filament in a sodium vapour bulb. They are not incandescent light.

2 years ago
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