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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.

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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

Related Questions

A non luminous flame should be put off or adjusted to a luminous flame. Explain?

fire


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 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.


Is a burning gas lantern is a luminous or non luminous?

It gives off light. That is what luminous means.


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.


What happens to evaporating dish when placed to a non-luminous flame?

When an evaporating dish is placed over a non-luminous flame, the organic substances in the dish will burn, leaving behind inorganic residues like ash. The heating process will also drive off any volatile gases or liquids present in the dish.


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.


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.


How can a flashlight be luminous and non luminous at the same time?

A flashlight is luminous when it is turned on and emitting light. It is non-luminous when it is turned off and not emitting any light. So, a flashlight can be both luminous and non-luminous at different times depending on its operational state.


how can a flashlight be both luminous and non-luminous at the some time?

A flashlight can be both luminous and non-luminous at the same time if it is turned on in a well-lit room. The flashlight itself emits light (luminous) while the ambient light in the room also contributes to the overall illumination (non-luminous).


Is hally's comet luminous or non luminous?

Halley's Comet is non-luminous itself; it does not emit light like a star. However, it becomes visible in the night sky as sunlight reflects off its surface, making it appear luminous to us on Earth.