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I'm assuming you don't mean such things as incandescent bulbs, Cathode Tube displays, and LED displays.
Phosphorescence is the name given to natural materials that glow without external stimulus.
At one end of the range, we have the fireflies and glow-worms, and many other biota that produce light as part of their mating or food catching behaviour. The phosphorescence of minute sea creatures all glowing in the wake of a ship is a commonly marvelled sight.
Some decay products glow quite naturally in the dark, though there is no further purpose behind the glow. (For they are non sentient). In New Zealand, a green fungal decay of beech wood is a common glow in the night time forest. A NZ worm displays phosphorescence in its fluids - but this may be due to consumed material.
And of course it is named phosphorescence because some types of Phosphorus glow by themselves. Well, actually white phosphorous will slowly oxidize in the air, and strictly, this is chemiluminescence.
Radioactivity was first identified in 1896 by Becquerel when he was studying substances that glowed naturally in the dark.
What else can I help you with?
What is an example of an illuminated object?
An example of an illuminated object is a light bulb. When turned on, a light bulb emits light, making it an illuminated object.
What determines the kind of wavelength and the amount of radiation that an object emits?
The temperature of an object determines the type of wavelength it emits. An object at a higher temperature emits shorter wavelengths, such as visible light or ultraviolet radiation, while colder objects emit longer wavelengths, like infrared radiation. The amount of radiation emitted is governed by the object's temperature and its emissivity, which is a measure of how efficiently an object can emit radiation.
What is light object?
A light object can refer to a physical object that emits or reflects light, such as a light bulb, lamp, or flashlight. It can also refer to an object in computer programming that represents a graphical element, like a shape or image, that can be displayed on a screen.
What is an called when the object glows when it is heated?
An object that glows when heated is called incandescent. This phenomenon occurs when the object's temperature increases to the point where it emits visible light.
What an object does to light so we see it?
An object reflects or emits light that enters our eyes, allowing us to see it. Light interacts with the surface of the object, with some of it bouncing off and reaching our eyes, which enables us to perceive the object's shape, color, and texture.
If an object emits or reflects light?
It can be seen by the eye.
What is an example of an illuminated object?
An example of an illuminated object is a light bulb. When turned on, a light bulb emits light, making it an illuminated object.
What object is made black so that it emits heat?
coal is made black so that it emits light
What kind of object swallows everything and emits radiation?
This question is a contradiction.
What determines the kind of wavelength and the amount of radiation that an object emits?
The temperature of an object determines the type of wavelength it emits. An object at a higher temperature emits shorter wavelengths, such as visible light or ultraviolet radiation, while colder objects emit longer wavelengths, like infrared radiation. The amount of radiation emitted is governed by the object's temperature and its emissivity, which is a measure of how efficiently an object can emit radiation.
Why is the statement the color of an object depends on the wavelengths of light it absords inaccurate?
...because the colour of an object depends on the wavelength of light it reflects, or the wavelength of light it emits.
Why do object appear white?
A white object emits light in all/most of the visible spectrum evenly.Because it reflects all the light back.
Is gold non luminous object?
sun (a luminous object) emits its own light and the moon ( a non luminous object ) reflects the light from the sun to earth that's how we can see the moon. The same way gold is a non luminous object.
Is color a property of an object?
Yes, color is a property of an object that is determined by the way the object reflects or emits light at different wavelengths.
What are two ways that an object gives of light?
A torch emits light from the bulb. A mirror gives off light by reflection.
What does a star emits?
The spectrum is a kind of analysis of the light emitted by a star.
What is light object?
A light object can refer to a physical object that emits or reflects light, such as a light bulb, lamp, or flashlight. It can also refer to an object in computer programming that represents a graphical element, like a shape or image, that can be displayed on a screen.
