Answer Posted / k.venkateswarlu
tube light is an electric discharge lamp,that is florescent
lamp.it consist of two plates separated by a distance with
some medium, a high voltage applied between the two plates
,an arc is extinguish between them like arc extinguish in
circuit breaker, so that electrons are energized and
traveling one plate to another one.in that manner light
energy liberated from electrons,and tube is coated with some
powder,that it will support the light
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