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Q.

Is it true that objects which emit light on their own are known as luminous objects?


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a

True

b

False 

answer is A.

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Detailed Solution

The above statement is True.
A light source is defined as an object that can emit light or light energy radiation into the environment. For example, the sun, stars, lightning and fireflies are natural sources of light. A source of light which emits its own light is called a luminous object, and sources of light made up by humans or artificially are called artificial sources of light, like bulbs, oil lamps etc. Properties of an artificial source of light, like the speed of propagation, brightness, contrast, etc., can be changed externally.
 
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