1. state the three catergories of non- luminous bodies 2. mention the 4 properties of light 3. what are light rays and beams
Answers
Explanation:
Objects that do not reflect light are known as non luminous objects. Examples of non luminous objects are wood, plastics, metals etc. Properties of Luminous Objects and Non Luminous ObjectsLuminous bodies like the sun, a gas flame and an electric light filament are visible since they are light sources
The primary properties of visible light are intensity, propagation direction, frequency or wavelength spectrum, and polarization, while its speed in a vacuum, 299,792,458 meters per second, is one of the fundamental constants of nature
Ray of light: The direction or path along which, light energy travels in a medium is called a ray of light. It is represented by a straight line with an arrow marked on it. Beam of light: A group of light rays is called a beam of light. A beam of light may be parallel, convergent or divergent