Difference between luminous and non-luminous objects?

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Luminous object- object that emit their own light are called luminous object Example - sun, electric bulb , firefly etc.Non luminous object- object that do not emit their own light are called non luminous object example -moon, chair, table etc.

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Objects that can produce light by their own are called luminous objects for eg: sun as it does have light of its own.Objects that doesn't produce light by their own is called non luminous objects for eg: planets as they take light from sun, hope you understood..!  :-))

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An object that emits light of its own is called luminous.an object do not emit lights of its own is called non- luminous.

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Objects that have its own light are called luminous objects.

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Luminous object that give emit light of their own are called luminous object

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Difference between Luminous and Non-luminous Objects

Luminous and non-luminous objects are terms used in physics to describe the ability of objects to emit light. Understanding the difference between these two types of objects is crucial in comprehending the nature of light and its interaction with matter. Let's delve into the details of luminous and non-luminous objects.

Luminous Objects

Luminous objects refer to those that emit light on their own. These objects possess the ability to generate and emit electromagnetic radiation within the visible spectrum. The light emitted by luminous objects can be seen directly by the human eye.

Examples of luminous objects include:

1. Stars: Stars, such as our sun, are massive luminous spheres that emit light and other forms of electromagnetic radiation due to nuclear fusion reactions occurring within their cores.
2. Light bulbs: Electrically powered light bulbs produce light by passing an electric current through a filament, which becomes hot and emits visible light.
3. Fire: Combustion processes, like a burning candle or a campfire, release energy in the form of heat and light.

Non-luminous Objects

Non-luminous objects, on the other hand, do not emit light on their own. They rely on external light sources to become visible. These objects can either absorb or reflect light that falls on them.

Examples of non-luminous objects include:

1. Moon: The moon does not generate its own light but reflects sunlight, making it visible to us at night.
2. Books: Books do not emit light but are visible to us because they reflect light from the surrounding environment.
3. Tables: Tables do not emit light but can be seen due to the reflection of light from nearby sources or light falling directly on them.

Key Differences

1. Source of Light: Luminous objects generate their own light, while non-luminous objects do not and rely on external light sources.
2. Visibility: Luminous objects can be seen directly, while non-luminous objects become visible through the reflection or absorption of light.
3. Energy Conversion: Luminous objects convert one form of energy into light energy, whereas non-luminous objects do not convert energy into light.
4. Examples: Stars, light bulbs, and fire are examples of luminous objects, while the moon, books, and tables are examples of non-luminous objects.

Understanding the difference between luminous and non-luminous objects is essential in various scientific fields, including astronomy, optics, and the study of light propagation.

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