Survey
* Your assessment is very important for improving the workof artificial intelligence, which forms the content of this project
* Your assessment is very important for improving the workof artificial intelligence, which forms the content of this project
Chapter – 27 Light Electromagnetic radiation – energy carried through space in the form of waves. What is Light? • electromagnetic radiation with wavelengths between 400 nm and 700 nm that stimulates the retina of your eye. • Nm = 1 x 10-9 m - 0.000000001 m • How fast light travels is dependent of the median in which it travels through. • speed of light in a vacuum = 3.0 x 108 m/s.. – (186 thousand miles per second) - Visible light is a collection of all the colors of the rainbow (R.O.Y.G.B.I.V.), which together make white light. • Each color has its own wavelength and frequency but they all travel at the same speed (until they hit a medium). • Color by addition • Primary colors – red, green and blue (together make white) • Primary colors can be mixed together to form secondary colors • Secondary colors • Red and green = yellow • Blue and green = cyan • Red and blue = magenta