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Why is it advisable to put off a non luminous flame when not in use?
AlvinMainazfb8044
Non- Luminous can burn efficiently because luminous flames don't burn as efficiently as non-luminous ones, they don't produce as much energy. This means that the non-luminous flames have a lot more energy than luminous ones, and their flames are actually hotter. This is why the luminous ones look yellow and the non-luminous ones look blue. Hotter flames burn blue and (relatively) cooler ones burn yellow.
Cheyanne Tremblay
Wiki User
∙ 9y agoWhen a bunsen flame is non-luminous, it has sufficient oxygen to burn completely to carbon dioxide and water, and release most of its energy as heat. A luminous flame is cooler, and combustion is incomplete, so a significant amount of carbon is produced. This is soot and can be seen if you hold a cold surface in the yellow flame.
Wiki User
∙ 7y agoA non luminous flame is not so noticeable. It may be overlooked and, being a naked flame, may start a fire.
Wiki User
∙ 7y agoBecause someone else may not notice it and either burn themselves or something else.
Wiki User
∙ 14y agoThe yellow color in a luminous flame is basically the black-body
emission from hot particles of soot in the flame. they are hot, and
they glow like the filament of a light bulb.
In a blue flame, there are no particles of soot to give that
incandescent radiation. Instead, the main color you see is blue
emission from the high-energy C2 molecule.
The difference between a yellow and blue flame depend on the amount
of oxygen that is mixed in with the fuel. More oxygen means that the
combustion reaction is more efficient and more energy is released.
Wiki User
∙ 9y agoThe advantage of using non-luminous flame is the production of a higher amount of energy. Non-luminous flame burns more efficiently compared to luminous flame.
lucas dandy
luminous flame is not easily noticed and hence may lead to fire outbreak or cause injuries
Anonymous
It can easily burn because it is not easily seen
Anonymous
The mixtuer of gases burns more quickly and completely andproduces a pale blue flame
Anonymous
Since it is invisible, it can easily cause an accident of burns in the laboratory
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When a lamp is turned off is it luminous or non-luminous?
If the bulb is switched off, then we would call it non-luminous.
Is a torch luminous or non luminous?
At first light it DOES sound a bit confusing. First, the definition of the term 'NON-LUMINOUS'; 'Not capable of PRODUCING light but can be capable of REFLECTING light from another source'. For instance, our MOON is NON-LUMINOUS as it REFLECTS light from the Sun. The SUN is LUMINOUS as it produces light that is REFLECTED off the surface of the moon. And so, LUMINOUS means capable of PRODUCING light. Now closely examine your flashlight. The BATTERIES produce electrical energy which is transferred to the BULB which emits light, thus LUMINOUS. The tiny little BULB emits quite a lot of light for its small size. However, the bulb is contained within a concave silvered cone which REFLECTS,(NON-LUMINOUS) gathers and channels the emitted light from the BULB (LUMINOUS) into a BEAM which ILLUMINATES whatever you are pointing the flashlight at. Our cameras would be just paperweights if there were no NON-LUMINOUS surfaces for the light to REFLECT off of, back into the camera lens, onto the 'plate' thus etching the image. For example, take a photograph in the dark without the flash and what do you get. No LUMINOUS, no NON-LUMINOUS. And so there we have LUMINOUS and NON-LUMINOUS, ILLUMINATING our lives. Enjoy! :)
What are the different zones of candle flame?
The candle flame has 4 zones from innermost to outermost: 1)Blue zone: It is near the base of the flame. Here the fresh air rapidly mixes with was vapour formed from the molten wax.A part of wax vapour completely burns and gives rise to blue flame. 2)Dark inner zone: This part consists of unburnt wax vapour given off by molten wax.It is the coldest part of the flame It is dark because of of decomposed carbon particles. 3) Luminous zone: In this zone partial combustion takes place with liberation of a lot of heat. This zone is hotter than the dark inner zone. 4) Non luminous zone:It is a zone were complete combustion takes placeIt is hottest part of the flame and is hardly visible.
What is the difference between illuminated objects and non-luminous objects?
Luminous - bodies are objects which exhibit their own light.EXAMPLE:-SUNnon-luminous bodies are objects that reflect light from luminous bodiesEXAMPLE:-moonLuminous bodies are insects that give a light, such as the glow worm. Non luminous bodies do not glow o their own. it can also refer to things in space; such as planets, moons and stars
10 examples of non-luminous objects?
Earth, bricks, plastic, metals, moon, planets ,mirrors, paper,rubber,pencils
A non luminous flame should be put off or adjusted to a luminous flame. Explain?
fire
What is makes the flame luminous?
How: by opening up the air hole on a Bunsen burner after it is turned on.........What: Some atoms or molecules are not luminous when hot. They emit light outside the spectrum we can see, like CO2 emits infrared. Others only emit a faint color in the flame.The non-luminous is made when there is a complete combustion or complete burning process. It happens when there is more than the enough oxygen in the surroundings or in the place where the process will happen.
Is television luminous or non luminous?
A TV, when it's on and showing an image is luminous. When it's off, it's non luminous.
When a lamp is turned off is it luminous or non-luminous?
If the bulb is switched off, then we would call it non-luminous.
What is luminouse and non-luminouse?
i think luminous means when something gives off light and non-luminous means when something does not give off light.
Is a burning gas lantern is a luminous or non luminous?
It gives off light. That is what luminous means.
how can a flashlight be both luminous and non-luminous at the some time?
A flashlight is luminous when it emits light (turned on). It's non-luminous when it's off or the battery dies.
Why is it that you can't see a non-luminous object if there is no luminous object present?
because there is no light reflecting off of the non-luminous object into your eyes to let you see it.
Suggest two reasons why a luminous flame is not used as a source of heat in a laboratory experiment?
It produces more heat. It does not produce soot that would stain the laboratory apparatus.
Is a torch luminous or non luminous?
At first light it DOES sound a bit confusing. First, the definition of the term 'NON-LUMINOUS'; 'Not capable of PRODUCING light but can be capable of REFLECTING light from another source'. For instance, our MOON is NON-LUMINOUS as it REFLECTS light from the Sun. The SUN is LUMINOUS as it produces light that is REFLECTED off the surface of the moon. And so, LUMINOUS means capable of PRODUCING light. Now closely examine your flashlight. The BATTERIES produce electrical energy which is transferred to the BULB which emits light, thus LUMINOUS. The tiny little BULB emits quite a lot of light for its small size. However, the bulb is contained within a concave silvered cone which REFLECTS,(NON-LUMINOUS) gathers and channels the emitted light from the BULB (LUMINOUS) into a BEAM which ILLUMINATES whatever you are pointing the flashlight at. Our cameras would be just paperweights if there were no NON-LUMINOUS surfaces for the light to REFLECT off of, back into the camera lens, onto the 'plate' thus etching the image. For example, take a photograph in the dark without the flash and what do you get. No LUMINOUS, no NON-LUMINOUS. And so there we have LUMINOUS and NON-LUMINOUS, ILLUMINATING our lives. Enjoy! :)
What are luminescent objects?
A luminous object is something that emits/gives off light - eg sun, star, light bulb, A non-luminous object is something that doesnt have/give off its own light - eg moon, diamond, wood. Non-luminous objects can only be seen because they reflect light, which is given off by luminous objects.
How can a non luminous body be made luminous Give an example?
Luminous objects create light .A non luminous object does not give off light.For instance, my feet are not luminous.Our sun and the rest of the stars in the universe are luminousNon-luminous objects are the ones who doesn't have its own light like you can say moon,trees, branches,plants, metals mirrors bricks etc.
