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Question : A fluorescent tube contains__________.

Option 1: Argon vapour

Option 2: Mercury vapour

Option 3: Sodium vapour

Option 4: Neon vapour


Team Careers360 20th Jan, 2024
Answer (1)
Team Careers360 24th Jan, 2024

Correct Answer: Mercury vapour


Solution : The correct option is Mercury vapour .

A small mercury vapour can be found in a standard fluorescent tube. UV light is produced by the Mercury vapour when power is introduced. A Phosphorescent coating within the tube reacts with the UV light, allowing it to glow and emit visible light. This technique is what creates the distinctive glow of fluorescent tubes.

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