Question

Common used substance in fluorescent tube is mercury vapour and argon

Answer 1

yaa right what but is your question?

Answer 2

Hey.

Yes, commonly used substance in fluorescent tube is Mercury vapour and Argon.

A fluorescent lamp, or fluorescent tube, is a low-pressure mercury-vapor gas-discharge lamp that uses fluorescence to produce visible light. An electric current in the gas excites mercury vapor, which produces short-wave ultraviolet light that then causesa phosphor coating on the inside of thelamp to glow.

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