Fluorescent tubes give more light than a filament bulb of same power because

the tube contains gas at low temperature

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ultraviolet light is converted into visible light by fluorescence

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light is diffused through the walls of the tube

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it produces more heat than bulb

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Solution

The correct option is B ultraviolet light is converted into visible light by fluorescence
The tubelight has coating of fluorescent material which converts ultra violet light into visible light. Hence the light is more intense.

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Similar questions

Q. Following devices are lighted for the same time under the same power supply.
1. Electric incandescent bulb
2. Compact fluorescent lamps
3. Fluorescent tube light
Which of the following devices produces maximum heat?

Q. Assertion :40 W tube light give more light in comparison to 40 w bulb. Reason: Light produced is same from same power.

In a filament type light bulb, most of the electric power consumed appears as:
(a) visible light (b) infra - red - rays (c) ultravioley rays (d) fluorescent light

Which of the following device is most efficient for the lighting purpose :

LED, CFL, Fluorescent tube light, Electric bulb.

Q. A tube light converts electrical energy into heat energy

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Fluorescent tubes give more light than a filament bulb of same power because

The correct option is B ultraviolet light is converted into visible light by fluorescenceThe tubelight has coating of fluorescent material which converts ultra violet light into visible light. Hence the light is more intense.

The correct option is B ultraviolet light is converted into visible light by fluorescence
The tubelight has coating of fluorescent material which converts ultra violet light into visible light. Hence the light is more intense.