Light / Optics

Light & Optics Physics Help / Visible Light / Speed of Light / Refraction / Classical & Modern Optics

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Light is electromagnetic radiation within a certain portion of the electromagnetic spectrum. Light sometimes refers to electromagnetic radiation of any wavelength, whether visible or not: gamma rays, X-rays, microwaves radio waves. Optics studies light and the interaction of light and matter. Optical phenomena (rainbows, aurora borealis) offer clues about the nature of light.

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