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Light is one fom of energy. It is in the form of visible radiation spreads from 400 to 700 nm in the electro magnetic spectrum.

The source of generation of light is interaction of radiation with matter. When energy is given to the atom , it consists of various energy levels . electron goes to higher energy level and returns to lower energy level by releasing energy.

If this energy consists of wave length in the visible region it emits as a light.

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14y ago

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