Why do bulbs appear yellow while tubelights appear white?

Answer 1

A neon lamp is a gas discharge lamp containing primarily neon gas at low pressure.

A light bulb is a source of artificial light that works by incandescence. An electric current passes through a thin filament, heating it and causing it to emit light.

Answer 2

Simply because the bulbs have a tungsten filament which is heated to an extent that it starts emitting light..
In tubelights, however, different technique is followed altogether....
In tubes, the electrons of the gas are 'excited' and the walls of the tubelight is painted by a flouroscent paint on the inside (bulb is of transparent glass) Now when the electrons hit the paint , it illuminates it..
And thats how you get light... :-)
White Light....

** Using bulbs can also produce white light by heating to higher temperatures and using suitable gases and filament..
e.g. Mercury lamps (of 1 kW or 2 kW)

Hope this piece of infformation finds use to you..

Answer 3

If you took a photograph of a regular incandescent light bulb, it would appear reddish. The red color comes from the glow of a super-hot tungsten filament.
Snap a photo of the flourescent tubes and they will appear green. The green color comes from the glow of a electrically charged gas.
Those are their true colors.

Your brain compensates to make them both appear more white.
Modern cameras have a feature that also compensate for the gamma or color of the light source. It adjusts the photograph so it appears more naturally lit, reducing the red or green tints. Before digital cameras, photographers used compensating filters to correct the color balance of incandescent or flourescent lighing.

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Answer 4

"A tube light , fluorescent lamp, is a gas-discharge lamp that uses electricity to excite mercury vapor in argon or neon gas, resulting in a plasma that produces short-wave ultraviolet light. This light then causes a phosphor to fluoresce, producing visible light."
Visible light is the combination of 7 colours and thus we see it white

"The light bulb is a source of artificial light that works by incandescence. An electric current passes through a thin filament, heating it and causing it to emit light. The enclosing glass bulb prevents the oxygen in air from reaching the hot filament, which would be otherwise rapidly destroyed by oxidation."
The emission of light from a hot filament can produce light of certain wavelength in the visible light spectra. Thus we see light which is not white. It can be of any colour

Answer 5

There are also bulbs that emit white light. It depends on the gas that is inside the bulb or tube.

Answer 6

The sunlight is considered a yellow massive call because of the fact its mild peaks interior the yellow-green, yet to our eyes this is white. image voltaic includes sufficient mild in the time of all the seen spectrum for it to look white to us. you do no longer pass out at midday and think of the sunshine seems yellowish, do you? with regard to the only time you may surely investigate the sunlight is while that's low interior the sky. if so, the blue mild has been scattered away via the ambience, and the sunlight seems yellow or pink. additionally, our seen device has a tendency to accomplish an automated "white stability", so as that any particularly finished-spectrum source seems white. in case you're taking a image with assorted mild supplies you will see that image voltaic, incandescent mild, and fluorescent mild are distinctive colorations, yet decrease than all and sundry of them we tend to be certain the sunshine as only white. frequently, we are attentive to a mild source having a colour bias given that that's significantly damaging in some component to the spectrum, or if we see it while in comparison with a distinctive source.

Answer 7

coz the source of light in the bulb is the heat produced in the filament u can check it out urself tube light is nt that hot but a lighted bulb is comparitively hotter

Answer 8

tubelights are filled with gas wereas a bulb as an element.

Answer 9

every element when heated produces a different frequency of light. bulbs are tungsten, tubes are phosphorous.

same principle we use to find the composition of distant stars.

Answer 10

because Lindsay Lohan wanted them that way!