PPT-23.2 Refraction

pp 503 506 and 525 241 Mr Richter Agenda WarmUp Notes The Speed of Light Index of Refraction Angle of Refraction Total Internal Reflection Dispersion Objectives We Will Be Able To. Principles When light passes at an angle from one medium to another it undergoes refraction The angle of incidence and the angle of refraction are measured relative to the normal a line perpendicular to the surface If the indices of the two media When light travels from one material to another it usually changes direction. The bending of light that occurs at the borderline of two materials is called . refraction. Geometrical concepts:. -incident ray. pp. 562 -567. Mr. Richter. Agenda. Warm-Up. Introduction to Refraction Demo. Reminder: Quarter 3 Ends Friday. Notes:. Refraction. Index of Refraction. Why Light Bends. Refracted Images. Snell’s Law. 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. . Intro to Refraction. Take 3 cups from the front, labeled 1,2,3. . Observe each straw through the side of the cup as you slowly turn the cup. . DO NOT STIR THE CONTENTS!. Write down your observations. . 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.... Kai Lu. King Abdullah University of Science and Technology. Outline. Introduction and Motivation. Theory: conventional SVI with stationary phase integration. S. ynthetic data example. Field data example. 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.. 1. Put the penny in the . cup. . Look at the penny, then walk backwards . until just . after you can't see the penny anymore.. 2. It's very important that you can't see the penny. Without that, the magic . 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 . Transparent substances refract light. It’s not magic… it’s science!. How light Refracts. Refraction is due to changes in the speed of light.. In space, light travels at 300 000 km/s. Space is a vacuum, and there are no particles to get in the way of light and slow it down.. light bends or refracts when it moves from one medium to another. the light bends because it changes speed. if light slows down it bends toward the normal. if light speeds up it bends away from the normal. o. . What is the angle of incidence in glass?. Problem 1. Light travels from crown glass (n=1.52) into air (n=1.00). The angle of refraction in air is 60. o. . What is the angle of incidence in glass?. Stephen Kyle. University College London. s.kyle@ucl.ac.uk. Co-authors: . Stuart Robson (UCL). Lindsay MacDonald (UCL). Mark Shortis (RMIT University). The task for UCL in the LUMINAR project. “Large volume” means 3D metrology in large manufacturing spaces. The Airbus image (right) shows a typical example..