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A flashlight is a device whose purpose it to emit light, or be luminous. The 2 most common types of flashlights are LED or bulb. LED, or Light Emitting Diode flashlights run electricity though semiconductors that manipulate the current in a way that releases photons, the tiny packets of energy that make up light. Bulbs use incandescence to produce light, which is produced though the resistance of the material (or filament) to the electricity that is being forced though it. The material heats up, but due to the low oxygen in the glass bulb it cannot oxidize, and instead glows.
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How can a flashlight be non-luminous?
infra red maybe??? get a remote and your camera phone and you'll see what i mean or A flshlight can be non-luminous because the batteries from the flashlight gives the energy that makes light.
Is a volcano erupting luminous or non luminous?
It is luminous
Is the earth luminous or non-luminous?
The earth is Non-luminous.
Is table luminous or non luminous?
It's non-luminous
Are glow in the dark objects luminous or illuminated?
Luminous.
Is a flashlight luminous or illuminated?
A flashlight is a luminous object.
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.
Can a flashlight be luminous and nonluminous?
Yes
How can a flashlight be luminous and non luminous at the same time?
cause...u know DONOH11111
How can a flashlight be non-luminous?
infra red maybe??? get a remote and your camera phone and you'll see what i mean or A flshlight can be non-luminous because the batteries from the flashlight gives the energy that makes light.
Can see the non luminous ball when the flashlight shine on it?
Light from the flashlight reflects off the ball to your eye which enables you to see the ball.
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! :)
Why can you see a planet through a telescope if it is not luminous?
The same way you see a rock on the ground at night ... shine a flashlight on it.That's exactly how we see anything in the solar system ... planets, comets, moons,asteroids, etc. The sun is the 'flashlight'.
Is an eye luminous?
No. Eyes are not luminous. They observe or perceive light but they do not emit light. Luminous means "emit light." There are various species of animals, such as deer, cats, and dogs, whose eyes have the ability to reflect light which sometimes make them appear to glow in the dark as they reflect a flashlight, headlight, or other light that is shining in their direction. But even then, the eyes do not produce their own light so they are not luminous.
Is a volcano erupting luminous or non luminous?
It is luminous
Is sooty flame a luminous or non luminous?
luminous
Is the earth luminous or non-luminous?
The earth is Non-luminous.
