Created by Finnuala Brett
over 6 years ago
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Q:
The mercury atoms in a fluorescent tube are excited and then emit photons in the ultraviolet region of the electromagnetic spectrum.
i) Explain how the mercury atoms become excited.
ii) Explain how the excited mercury atoms emit photons.
iii) Why do the excited mercury atoms emit photons of characteristic frequencies?
iv) Explain how the coating on the inside of a fluorescent tube emits visible light.