Question

a body that emits light on it own. ..................
fill up

Answer 1

Celestial bodies emit light on it own. Like stars they emit large amount of heat which causes light. If one star will fell down to earth then imagine what will happen. Star is very much bigger then earth

Answer 2

Body that emits light by their own is known as Luminous object.
Example:- The Sun, The Moon etc.

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