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A body that can give off electromagnetic radiation (light) such as the Sun, a lightbulb, etc.
What else can I help you with?
Why a luminous flame is not used as a source of heat in a laboratory experiment?
A luminous flame produces soot, which can contaminate the experiment or react with chemicals being used. In addition, the temperature of a luminous flame is not as high or consistent as a non-luminous flame, making it less suitable for precise heating applications in a laboratory setting.
Is lamp luminous?
Yes, anything that gives off light e.g. the sun is luminous. So would be a lamp and the moon, however not all things e.g. Not a mirror, not a table and not a piece of paper.
What are the similarities of luminous and non-luminous?
Luminous and non-luminous objects are both physical entities that occupy space and have mass. However, the key difference lies in their ability to emit light. Luminous objects, such as the sun or a light bulb, generate their own light, while non-luminous objects, like the moon or a book, reflect light from another source. Both types of objects play important roles in our understanding of physics and the natural world.
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).
What is the meaning of non luminous objects?
The non-luminous is those objects which do not produce its own light.It provide the light which is reflecting from another e.g.moon did not produce its own light,sun is giving the light to moon,moon reflecting the light of sun.
What is a luminous light source?
Luminous light is a light source but another name for it.
Distinguish between a luminous source and an illuminated source?
A luminous source produces its own light, like the sun or a light bulb. An illuminated source does not produce light but reflects light from a luminous source, such as the moon reflecting sunlight.
What is non luminous source?
It is a source which does not produce light.
Is a flashlight luminous or illuminated?
A flashlight is considered illuminated because it emits light due to an internal power source (battery). Luminous objects generate their own light without requiring an external source.
Definition of luminous and non-luminous sources of light?
Luminous sources of light are objects that emit light due to their own energy, like the sun or a light bulb. Non-luminous sources of light are objects that reflect light from luminous sources without emitting light themselves, like the moon or a mirror.
What is lumens per watt could you give a brief definition about lumens per watt?
Luminous efficacy is a figure of merit for light sources. It is the ratio of luminous flux (in lumens) to power (usually measured in watts). As most commonly used, it is the ratio of luminous flux emitted from a light source to the electric power consumed by the source, and thus describes how well the source provides visible light from a given amount of electricity.This is also referred to as luminous efficacy of a source.
What is the meaning of luminous materials?
Luminous materials are substances that emit light after being exposed to a light source. This light emission can be immediate or can continue for a period of time after the light source is removed. Luminous materials are commonly used in safety signs, glow-in-the-dark products, and other applications where visibility in low light conditions is important.
Is an ordinary frosted incandescent bulb a luminous or an illuminated source?
An ordinary frosted incandescent bulb is a luminous source because it produces light through its own incandescent filament. It does not rely on external light sources to produce light.
What is the meaning of non luminous?
Non-luminous refers to objects or substances that do not produce light on their own. These objects rely on an external light source to be visible, as they do not emit their own light. An example of a non-luminous object is a table.
What is the unit used to measure luminous intensity in the SI system?
The SI unit of luminous intensity is the candela.
What does a spectograph tell us?
A spectrograph tells us which colors (wavelengths of light) are in a luminous source.
Is a glow in the dark ball luminous or illuminated?
A glow in the dark ball is considered luminescent because it emits light through a chemical reaction or energy absorption rather than being illuminated by an external light source.
