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Why it is possible to see non-luminous objects?
It's often possible to see non-luminous objects if you illuminate them with a source of light, such as a flashlight, a candle, or a drop of golden sunshine. No object absorbs all of the light that falls on it, so some light is always reflected from it, and some of that reflected light finds its way to your eye. Once any of the light falling on the object has reflected from it, it's very much as if the object were self-luminous.
What two things are necessary to produce a reflection?
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Do all light sources produce heat?
No, not all light sources produce heat. Some light sources, such as LEDs, produce very little heat because they are highly efficient at converting electricity into light. However, incandescent bulbs and halogen bulbs do produce heat as a byproduct of producing light.
Do all objects and things produce shadows?
No, not all objects and things produce shadows. Shadows are created when an object blocks light from a source, so objects that are transparent or allow light to pass through without obstruction may not produce a distinct shadow.
How cold does something have to be to produce no light?
An object would have to be at absolute zero (-273.15°C or 0 Kelvin) to produce no light, as there would be no thermal energy left to generate any form of light emission. At this temperature, all motion ceases and no light is emitted.
How do you we see non luminous objects?
We see object from the light they either produce or reflect. The Sun gives off light waves. An object absorbs all colors but what you see. The reflected light then travels to your eyes where it is interpreted.
Is a lava a luminous object?
Yes, typically lava glows red, orange, yellow, or white before it cools sufficiently to harden and become a black solid. So, while it is still hot enough to remain a viscous liquid, it gives off light, making it luminous.
How can you see an object that is not luminous and does not produce its own light?
Light can reflect off it - that is how we see all the planets in out solar system.It can bend light (Einstienisn lensing) if it is massive enough.You can see changes in light/energy from objects that go behind it (eclipsing)
Why it is possible to see non-luminous objects?
It's often possible to see non-luminous objects if you illuminate them with a source of light, such as a flashlight, a candle, or a drop of golden sunshine. No object absorbs all of the light that falls on it, so some light is always reflected from it, and some of that reflected light finds its way to your eye. Once any of the light falling on the object has reflected from it, it's very much as if the object were self-luminous.
How do we see non -luminous objects?
We can see non-luminous objects because the light reflect off the object and into our eyes that's why at night you can only see a faint out line of the objects around you
Are stars luminous or non luminous?
All things, except black holes, are luminous. That includes stars. You might think that some other things are not luminous but that's because you can't see the kinds of light that they emit.
Which object in space produces rather than reflects light?
All stars produce light rather than reflecting light.
Which object gives off its own light?
All objects warm enough to glow. It depends on what you count as 'light'. If you count all electromagnetic radiation, then all objects above absolute zero give off their own heat and light. Except, maybe, black holes. The answer for them is not so clear-cut.
What two things are necessary to produce a reflection?
u should have all the answers for everything? now make them all have answers or ill call ur boss!
What is meant by luminous?
Giving off light, as a light source. The sun, a light bulb, and a candle are all luminous. The moon is not because it does not give off its own light but reflects it from the sun; it is illuminated.
Why an opaque or non luminous appears to be certain color?
First, you must understand that all color is determined by red blue and yellow light in different combinations. Any color is caused by light being reflected off the object. A red object for example reflects red light, and absorbs blue and yellow.
Do all light sources produce heat?
No, not all light sources produce heat. Some light sources, such as LEDs, produce very little heat because they are highly efficient at converting electricity into light. However, incandescent bulbs and halogen bulbs do produce heat as a byproduct of producing light.
