The sulphide used in coating electric fluorescent tubes is?

Question: The sulphide used in coating electric fluorescent tubes is?

The sulphide commonly used in coating electric fluorescent tubes is called phosphor. Phosphor is a luminescent material that emits visible light when excited by the ultraviolet radiation produced by the electrical discharge within the fluorescent tube. The phosphor coating helps convert the ultraviolet radiation into visible light, allowing the fluorescent tube to produce bright and efficient illumination.

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