
Light - Wikipedia
Light, visible light, or visible radiation is electromagnetic radiation that can be perceived by the human eye. [1][2] Visible light spans the visible spectrum and is usually defined as having …
LIGHT Definition & Meaning - Merriam-Webster
The meaning of LIGHT is something that makes vision possible. How to use light in a sentence. Synonym Discussion of Light.
Light | Definition, Properties, Physics, Characteristics, Types ...
Nov 25, 2025 · Light is electromagnetic radiation that can be detected by the human eye. Electromagnetic radiation occurs over an extremely wide range of wavelengths, from gamma …
Light - Learn Physics
What is Light? Light is a type of energy that enables us to see with our eyes. Light travels from a source, like the sun or a light bulb, to our eyes, and to the surroundings. That is the reason we …
Light - definition of light by The Free Dictionary
Define light. light synonyms, light pronunciation, light translation, English dictionary definition of light. n. 1. Physics a. Electromagnetic radiation that is visible, perceivable by the normal …
What is Light? - Las Cumbres Observatory
Light is just one form of electromagnetic radiation, or electromagnetic waves. These waves are all around us and come in many sizes. The largest electromagnetic waves, with wavelengths …
What is light? | BBC Sky at Night Magazine
Nov 24, 2025 · What is light, what are the different types of light and how does light behave? A history of discoveries has led us to see more clearly.
Light – The Wonders of Physics – UW–Madison
In order to see, there must be light. Light shines on an object, then bounces off, or reflects, back to our eyes. Our eyes are sensitive to a certain kind of light called visible light. Visible light is …
Light - Simple English Wikipedia, the free encyclopedia
When light hits a transparent object, it passes through it almost completely without making a significant shadow. Light is a form of electromagnetic radiation that shows properties of both …
Light - Electromagnetic, Wavelength, Spectrum | Britannica
Nov 25, 2025 · In his formulation of electromagnetism, Maxwell described light as a propagating wave of electric and magnetic fields. More generally, he predicted the existence of …