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 wavelengths in …

Dec 29, 2025 · Light is a primary tool for perceiving the world and interacting with it for many organisms. Light from the Sun warms the Earth, drives global weather patterns, and initiates the life-sustaining …

The meaning of LIGHT is something that makes vision possible. How to use light in a sentence. Synonym Discussion of Light.

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 human eye as …

Light travels from a source, like the sun or a light bulb, to our eyes, and to the surroundings. That is the reason we can see objects during daytime with the sunlight, or with a light bulb in the night.

Light is a transverse, electromagnetic wave that can be seen by a typical human. Wavelengths in the range of 400–700 nm are normally thought of as light.

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 all the colors …

Reflection of light by a mirror is the basic example of specular reflection. A mirror consists of a glass sheet in front of a metallic coating where the reflection actually occurs. In the diagram, a light ray PO …

What is Light? Home SpaceBook The Nature of Light What is Light? Light is just one form of electromagnetic radiation, or electromagnetic waves. These waves are all around us and come in …

LIGHT definition: something that makes things visible or affords illumination. See examples of light used in a sentence.