A fluorescent tube is preferred to an electric bulb because
(a) it has a larger light emitting surface.
(b) voltage fluctuations do not affect it.
(c) in a tube electrical energy is almost converted into light.
(d) of these
(c) in a tube, electrical energy is almost converted into light
In a fluorescent tube, electrical energy is almost converted into light. The inner wall of the fluorescent tube is coated with phosphorus which immediately transformed into bright light.
