PPT-Geometric Optics Geometric Optics: The process of using light rays to determine how light

Light travels in a STRAIGHT LINE ANOTHER WAY TO THINK OF LIGHT Light leaving the candle travels in all directions but we only SEE the light that travels in to our EyeBrain ANOTHER WAY TO THINK OF . Jim Schwiegerling PhD. College of Optical Sciences. University of Arizona. Tucson, Arizona. Euclid. Raphael’s . School of Athens. Euclid ~300BC. Greek mathematician. His book . Elements. used to teach geometry for over 2000 years.. REINFORCEMENT. Example:. You provide something good when a student behaves positively, which . increases. this positive behavior. (Stickers or treats). PUNISHMENT. Example:. You apply a. negative consequence, when a student behaves negatively which . for. 1. st. year Physics . Honours. Course. By . Arnab. . Gangopadhyay. . Light. The . light. , . with which we see, is a small part of the vast spectrum of electro magnetic field.. Interaction of light with matter divided into three regimes.. Physics 4150. Fall, 2016. M. Goldman, Instructor. Laser. Flashlight. Light. bulb. Incident ray from a light bulb. MANY reflected rays come. from all parts of Alex, including. his nose - a diffuse object. Measurements of the speed of light (c) . Index of refraction v. medium. = c/n. the bending of light – refraction . total internal reflection . Color (wavelength and frequency, c = . l. f. . Dispersion. Images formed by mirrors. plane mirrors. curved mirrors . Concave (converging). Convex (diverging). Images formed by lenses. the human eye. correcting vision problems. nearsightedness. farsightedness. Measurements of the speed of light (c) . Index of refraction v. medium. = c/n. the bending of light – refraction . total internal reflection . Color (wavelength and frequency, c = . l. f. . Dispersion. Light . travels through space in . straight lines. . If a ray of light meets a body in its passage through space one of three things may happen. :. It may be . absorbed. . It may be . reflected.. It may be. It wasn’t until the early 19. th. century that light was theorized to behave as something other than a stream of particles.. Isaac Newton proposed the particle theory of light.. Newton’s theory was used to explain the reflection and refraction of light.. cathode ray tube. negative. positive. 99.999%. 0.001. % of a gas phase element present. Where are the rays coming from?. How could the direction of the rays be . experimentally determined?. From this experiment, it can be determined that the rays . OpenStax. Chapter . 25. Youtube. : . https://. youtu.be/lkm5XY_If6w. . 1. Describing Light. There are several different ways to “look” at light:. Light is. a . wave. a . particle. Light can be treated like a . Raytracing. Lecture 7: Optics. UCSD Physics 122. 2. Reflection. We describe the path of light as straight-line rays. “geometrical optics” approach. Reflection off a flat surface follows a simple rule:. Geometric Optics. Understanding images and image formation, ray model of light, laws of reflection and refraction, and some simple geometry and trigonometry. The study of how light rays form images with optical instruments. Dr. Steve Peterson. Steve.peterson@uct.ac.za. OPTICS. Chapter . 23. : . Geometric Optics. In this section, we will use the . ray model of light . to understand the formation of images by . mirrors. and .