PPT-Refraction Of Light & Optical Instruments

Chapter 14 SNELLS LAW     According to Snells law The ratio of the sine of the angle of incidence to the sine of the angle of refraction is always constant      Mathematically. RAY OPTICS -I Refraction of Light: Refraction is the phenomenon of change in the path of light as it travels from one medium to another (when the ray of light is incident obliquely). It can also be de 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. . 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.... Refraction occurs at a boundary. The speed of light must change at the boundary. The angle of the light ray is measured from the normal, as was the case with reflection. If the speed slows across the boundary, the refracted angle will be smaller – the light ray will bend toward the normal.. 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.. Emmetropia. and the . Ametropias. Scott P. Drexler OD. University of Pittsburgh . School of Medicine . AKA: Shape is Power. Light is a Wave. The direction and quality of that wave is changed as the wave transfers from one medium to another. 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 . 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. Section 1: Objectives. Use. ray diagrams to show how light is reflected or refracted.. . Compare . plane mirrors, concave mirrors, and convex mirrors.. . Use. ray diagrams to show how mirrors form images.. 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?. Lecture 6 . * . FiberOptics. * Spring 2019 * Kesden. First Modulated Communication By Light:. Photophone © 1880. Invented by Alexander Graham Bell & Charles . Tainter. in 1880. Voice modulated mirrors to send modulated light which was received and sensed using a selenium photoresistor and subsequently turned into sound.. NAME: . PAVITHRA J. DESIGNATION: . ASSISTANT PROFESSOR. SUBJECT CODE: . 18PHY12. OPTICAL FIBERS. CONTENTS. Introduction. Principle. Types of Optical Fibers. Applications. Conclusions. Fiber-optic communication is a method of transmitting information from one place to another by sending pulses of light through an optical fiber..