(a) What is the principle upon which the lighting in fluorescent tubes operate? (b) State...
PHYSICS
WAEC 1999
(a) What is the principle upon which the lighting in fluorescent tubes operate?
(b) State two factors on which the colour of light from a fluorescent tube depends.
Explanation
(a) Electrical discharge through low pressure gas
(b)
- Nature of the gas in the tube
- Nature of the coating d inside the tube.
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