Mercury Vapor Lamp
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PHYSICS
Optics and Lighting
Mercury Vapor Lamp
Mercury vapor lamps use electric arcs through mercury vapor to produce bright, efficient light
28 Jan 2026
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What is the primary role of the fused quartz arc tube in a mercury vapor lamp?
To convert ultraviolet light into visible light through phosphor coating
To contain the mercury vapor and sustain the electric arc that produces light
To provide thermal insulation and protect from ultraviolet radiation
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