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Light | Definition, Properties, Physics, Characteristics, Types ...
Light - Wikipedia
Light Definition & Meaning - Merriam-Webster
Light and its properties | Britannica
Light: Electromagnetic waves, the electromagnetic spectrum …
The Nature of Light – The Physics Hypertextbook
Light - Electromagnetic, Wavelength, Spectrum | Britannica
How Light Works | HowStuffWorks
Introduction to light (video) | Khan Academy
What is light? A guide to waves, particles, colour and more