PPT-Reflection and Refraction

Reflection When a wave reaches a boundary between two media usually some or all of the wave bounces back into the first medium A metal surface is rigid to light waves that shine upon it Light . pp. 503 – 506, and 525 (24.1). Mr. Richter. Agenda. Warm-Up. Notes:. The Speed of Light. Index of Refraction. Angle of Refraction. Total Internal Reflection. Dispersion . Objectives: We Will Be Able To…. Unit 8. How we use light to see.. To the physicist, the colors of things are not in the substances of the things themselves.. Color is in the eye of the beholder and is provoked by the frequencies of light emitted or reflected by things.. Mr. . . Dvorsky. SNC2D1. Review of last chapter. From the last chapter, we know how light behaves when it travels in space or in the air – i.e. it travels in a straight line.. When light strikes a plane mirror, the angle of incidence = the angle of reflection. . What has happened in each example and why?. I think this is called.... It happens when.... It happens because.... The air is.... The water is.... The light usually. travels...but when it hits water.... What is Refraction?. In a vacuum (air) light travels in straight lines.. But what happens when light travels from one material into another?. Like for example, from air to water?. What Happens When Light hits a Medium. CMSC 435/634. General Approach. Ray Tracing. Shoot more rays. Rasterization. Render more images. 3. Shadows. Are p or q in shadow?. Can they “see” the light?. Ray Traced Shadows. Rays from . p. /. Define refractive index.. Demonstrate refraction.. State the Laws of Refraction.. Solve problems about refraction.. HL: Solve problems about refractive index in terms of relative speeds.. Give examples of refraction in nature.. Define refractive index.. Demonstrate refraction.. State the Laws of Refraction.. Solve problems about refraction.. HL: Solve problems about refractive index in terms of relative speeds.. Give examples of refraction in nature.. Measurements of the speed of light:. c = 3 . × 10. 8. m/s = . 186,000 miles/s. light propagating through matter – . transparent vs. opaque. materials. colors. The bending of light – refraction. Interferometry: Theory. Pawan Bharadwaj, Gerard Schuster, Ian Mallinson. KAUST. 110 km. 110 km. Standard OBS Receiver Gather. Super-virtual OBS Receiver Gather. Problem: . Short Streamer=Missing Low-Wavenumber Components . Of light. By: Ahmed. Definitions. Luminous . objects . – . generate their own light (the sun). Illuminated. objects – reflect light (the moon). Definitions. Line . of Sight . – a line from an object or image to your eyes (light from the object travels along this line to your eyes). Vocabulary . Refraction-. . the bending of light as it passes from one material into another.. Prism-. . a polyhedron with two congruent and parallel faces (the bases) and whose lateral faces are parallelograms. The Law of Reflection. Reflection. Light behaves in a very predictable manner. Light can only travel in a straight line (most of the time…). The . Law of Reflection. states that the INCIDENT (incoming) light’s angle will be exactly the same as the reflecting light’s angle. Electromagnetic Waves. Electromagnetic (EM) waves . are waves caused by oscillations occurring simultaneously in electric and magnetic fields. A . 2D. transverse. wave. They DO NOT require any medium in order to propagate.