Physics 102: Lecture 17 Reflection and Refraction of Light
|
|
- Nancy Bruce
- 5 years ago
- Views:
Transcription
1 Physics 102: Lecture 17 Reflection and Refraction of Light Physics 102: Lecture 17, Slide 1
2 Recall from last time. Today Last Time Reflection: θ i = θ r Flat Mirror: image equidistant behind Spherical Mirrors: Concave or Convex Refraction: n 1 sin(θ 1 )= n 2 sin(θ 2 ) θ i θ r θ 1 n 1 θ 2 n 2 Physics 102: Lecture 17, Slide 2
3 Concave Mirror Principal Rays 1) Parallel to principal axis reflects through f. 2) Through f, reflects parallel to principal axis. 3) Through center. O #1 #3 f c Image is (in this case): Real (light rays actually cross) I Inverted (Arrow points opposite direction) Reduced (smaller than object) **Every other ray from object tip which hits mirror will reflect through image tip Physics 102: Lecture 17, Slide 3 #2
4 Physics 102: Lecture 17, Slide 4
5 Preflight 17.1 Which ray is NOT correct? 1) p.a. C f 2) 3) Physics 102: Lecture 17, Slide 5
6 Mirror Equation 1 d o + 1 d i = 1 f Works for concave, convex, or flat O d o d o = distance object is from mirror: c f Positive: object in front of mirror Negative: object behind mirror I d i = distance image is from mirror: d i Positive: real image (in front of mirror) Negative: virtual image (behind mirror) f = focal length mirror: Positive: concave mirror +R/2 Negative: convex mirror Physics 102: Lecture 17, Slide 6 R/2
7 Preflight 17.3 The image produced by a concave mirror of a real object is: 1) Always Real 2) Always Virtual 3) Sometimes Real, Sometimes Virtual Physics 102: Lecture 17, Slide 7
8 Physics 102: Lecture 17, Slide 8
9 ACT: Concave Mirror Where in front of a concave mirror should you place an object so that the image is virtual? 1) Close to mirror 2) Far from mirror 3) Either close or far 4) Not Possible Physics 102: Lecture 17, Slide 9
10 Magnification Equation m h h i o = d d i o O d o h o = height of object: θ Positive: always h i = height of image: Positive: image is upright I θ Negative: image is inverted m = magnification: Angle of incidence h o d i Positive / Negative: same as for h i < 1: image is reduced > 1: image is enlarged θ d o Physics 102: Lecture 17, Slide 10 tan(θ ) = h d o o = h d i i h i θ d i Angle of reflection 25
11 Solving Equations A candle is placed 6 cm in front of a concave mirror with focal length f=2 cm. Determine the image location. Preflight 17.2 Compared to the candle, the image will be: Larger p.a. C f Smaller Same Size Physics 102: Lecture 17, Slide 11
12 Physics 102: Lecture 17, Slide 12
13 ACT: Magnification A 4 inch arrow pointing down is placed in front of a mirror that creates an image with a magnification of 2. What is the size of the image? 1) 2 inches 2) 4 inches 3) 8 inches 4 inches What direction will the image arrow point? 1) Up 2) Down Physics 102: Lecture 17, Slide 13
14 3 Cases for Concave Mirrors Upright C F Object Image Inside F Enlarged Virtual Image C Obje ct F Between C&F Inverted Enlarged Real Obje ct C F Image Physics 102: Lecture 17, Slide 14 Past C Inverted Reduced Real
15 f image object Demo: two identical spherical mirrors each mirror is positioned at the focal point of the other Physics 102: Lecture 17, Slide 15
16 Physics 102: Lecture 17, Slide 16
17 Convex Mirror Rays 1) Parallel to principal axis reflects through f. 2) Through f, reflects parallel to principal axis. 3) Through center. O #1 #2 #3 I f Image is: Virtual (light rays don t really cross) Upright (same direction as object) Reduced (smaller than object) (always true for convex mirrors!): Physics 102: Lecture 17, Slide 17 c
18 Solving Equations A candle is placed 6 cm in front of a convex mirror with focal length f=-3 cm. Determine the image location. Determine the magnification of the candle. If the candle is 9 cm tall, how tall does the image candle appear to be? Physics 102: Lecture 17, Slide 18
19 Preflight 17.4 The image produced by a convex mirror of a real object is 1) always real 2) always virtual 3) sometimes real and sometimes virtual Physics 102: Lecture 17, Slide 19
20 Physics 102: Lecture 17, Slide 20
21 Physics 102: Lecture 17, Slide 21 Mirror Summary Angle of incidence = Angle of Reflection Principal Rays Parallel to P.A.: Reflects through focus Through focus: Reflects parallel to P.A. Through center: Reflects back on self f = R/ = 1 d o d i f m h i d = i h o d o
22 Index of Refraction 186,000 miles/second: it s not just a good idea, it s the law! v = c n Speed of light in vacuum Speed of light in medium Index of refraction v < c Physics 102: Lecture 17, Slide 22 so always! n > 1
23 Snell s Law When light travels from one medium to another the speed changes v=c/n, but the frequency is constant. So the light bends: n 1 sin(θ 1 )= n 2 sin(θ 2 ) n 1 Preflight 17.6 θ 1 1) n 1 > n 2 θ 2 n 2 2) n 1 = n 2 Compare n 1 to n 2. 3) n 1 < n 2 Physics 102: Lecture 17, Slide 23
24 Physics 102: Lecture 17, Slide 24
25 Snell s Law Practice Usually, there is both reflection and refraction! A ray of light traveling through the air (n=1) is incident on water (n=1.33). Part of the beam is reflected at an angle θ r = 60. The other part of the beam is refracted. What is θ 2? θ 1 θ r n 1 θ 2 = n 2 Physics 102: Lecture 17, Slide 25 normal θ 2 n 1 sin θ 1 = n 2 sin θ 2
26 Apparent Depth Apparent depth: d = d n 2 n 1 n 2 d d n 1 apparent fish actual fish Physics 102: Lecture 17, Slide 26
27 Physics 102: Lecture 17, Slide 27
Physics 102: Lecture 17 Reflection and Refraction of Light
Physics 102: Lecture 17 Reflection and Refraction of Light Physics 102: Lecture 17, Slide 1 Today Last Time Recall from last time. Reflection: q i = q r Flat Mirror: image equidistant behind Spherical
More informationLIGHT. Speed of light Law of Reflection Refraction Snell s Law Mirrors Lenses
LIGHT Speed of light Law of Reflection Refraction Snell s Law Mirrors Lenses Light = Electromagnetic Wave Requires No Medium to Travel Oscillating Electric and Magnetic Field Travel at the speed of light
More informationAlgebra Based Physics
Slide 1 / 66 Slide 2 / 66 Algebra Based Physics Geometric Optics 2015-12-01 www.njctl.org Table of ontents Slide 3 / 66 lick on the topic to go to that section Reflection Spherical Mirror Refraction and
More informationGeneral Physics II. Mirrors & Lenses
General Physics II Mirrors & Lenses Nothing New! For the next several lectures we will be studying geometrical optics. You already know the fundamentals of what is going on!!! Reflection: θ 1 = θ r incident
More informationPhys102 Lecture 21/22 Light: Reflection and Refraction
Phys102 Lecture 21/22 Light: Reflection and Refraction Key Points The Ray Model of Light Reflection and Mirrors Refraction, Snell s Law Total internal Reflection References 23-1,2,3,4,5,6. The Ray Model
More informationRay Diagrams. Ray Diagrams Used for determining location, size, orientation, and type of image
Ray Diagrams Reflection for concave mirror: Any incident ray traveling parallel to the principal axis on the way to the mirror will pass through the focal point upon reflection. Any incident ray passing
More informationRefraction and Lenses. Honors Physics
Refraction and Lenses Honors Physics Refraction Refraction is based on the idea that LIGHT is passing through one MEDIUM into another. The question is, WHAT HAPPENS? Suppose you are running on the beach
More informationCh. 26: Geometrical Optics
Sec. 6-1: The Reflection of Light Wave Fronts and Rays Ch. 6: Geometrical Optics Wave front: a surface on which E is a maximum. Figure 5-3: Plane Wave *For this wave, the wave fronts are a series of planes.
More informationOptics Course (Phys 311) Geometrical Optics Refraction through Lenses
Optics Course (Phys ) Geometrical Optics Refraction through Lenses Lecturer: Dr Zeina Hashim Slide 1 Objectives covered in this lesson : 1. Refraction through single spherical refracting surfaces. 2. Lenses:
More informationGeneral Physics (PHY 2130)
General Physics (PHY 2130) Lecture XIII Refraction of light Snell s law Dispersion and rainbow Mirrors and lens Plane mirrors Concave and convex mirrors Thin lenses http://www.physics.wayne.edu/~apetrov/phy2130/
More informationPhysics 1202: Lecture 17 Today s Agenda
Physics 1202: Lecture 17 Today s Agenda Announcements: Team problems today Team 10, 11 & 12: this Thursday Homework #8: due Friday Midterm 2: Tuesday April 10 Office hours if needed (M-2:30-3:30 or TH
More informationChapter 23. Images and Mirrors 3/23/11. Mirrors and Lenses QUESTIONS? PLEASE ASK! Types of Images for Mirrors and Lenses.
3/23/ LIGO mirror Announcements LIGO mirror Two exams down, one to go! No HW this week. Credit: LIGO Laboratory, Caltech Office hours: My office hours today from 2-3 pm (or make an appointment) Chapter
More informationChapter 26 Geometrical Optics
Chapter 26 Geometrical Optics 26.1 The Reflection of Light 26.2 Forming Images With a Plane Mirror 26.3 Spherical Mirrors 26.4 Ray Tracing and the Mirror Equation 26.5 The Refraction of Light 26.6 Ray
More informationChapter 7: Geometrical Optics. The branch of physics which studies the properties of light using the ray model of light.
Chapter 7: Geometrical Optics The branch of physics which studies the properties of light using the ray model of light. Overview Geometrical Optics Spherical Mirror Refraction Thin Lens f u v r and f 2
More informationOutline The Refraction of Light Forming Images with a Plane Mirror 26-3 Spherical Mirror 26-4 Ray Tracing and the Mirror Equation
Chapter 6 Geometrical Optics Outline 6-1 The Reflection of Light 6- Forming Images with a Plane Mirror 6-3 Spherical Mirror 6-4 Ray Tracing and the Mirror Equation 6-5 The Refraction of Light 6-6 Ray Tracing
More informationPHYS 219 General Physics: Electricity, Light and Modern Physics
PHYS 219 General Physics: Electricity, Light and Modern Physics Exam 2 is scheduled on Tuesday, March 26 @ 8 10 PM In Physics 114 It will cover four Chapters 21, 22, 23, and 24. Start reviewing lecture
More informationLight: Geometric Optics
Light: Geometric Optics The Ray Model of Light Light very often travels in straight lines. We represent light using rays, which are straight lines emanating from an object. This is an idealization, but
More informationChapter 26 Geometrical Optics
Chapter 26 Geometrical Optics The Reflection of Light: Mirrors: Mirrors produce images because the light that strikes them is reflected, rather than absorbed. Reflected light does much more than produce
More informationM = h' h = #i. n = c v
Name: Physics Chapter 14 Study Guide ----------------------------------------------------------------------------------------------------- Useful Information: c = 3 "10 8 m s 1 i + 1 o = 1 f M = h' h =
More informationRecap: Refraction. Amount of bending depends on: - angle of incidence - refractive index of medium. (n 2 > n 1 ) n 2
Amount of bending depends on: - angle of incidence - refractive index of medium Recap: Refraction λ 1 (n 2 > n 1 ) Snell s Law: When light passes from one transparent medium to another, the rays will be
More informationPhysics 1C Lecture 26A. Beginning of Chapter 26
Physics 1C Lecture 26A Beginning of Chapter 26 Mirrors and Lenses! As we have noted before, light rays can be diverted by optical systems to fool your eye into thinking an object is somewhere that it is
More information1. What is the law of reflection?
Name: Skill Sheet 7.A The Law of Reflection The law of reflection works perfectly with light and the smooth surface of a mirror. However, you can apply this law to other situations. For example, how would
More informationChapter 32 Light: Reflection and Refraction. Copyright 2009 Pearson Education, Inc.
Chapter 32 Light: Reflection and Refraction Units of Chapter 32 The Ray Model of Light Reflection; Image Formation by a Plane Mirror Formation of Images by Spherical Mirrors Index of Refraction Refraction:
More informationThe Law of Reflection
If the surface off which the light is reflected is smooth, then the light undergoes specular reflection (parallel rays will all be reflected in the same directions). If, on the other hand, the surface
More informationPhysics 11 Chapter 18: Ray Optics
Physics 11 Chapter 18: Ray Optics "... Everything can be taken from a man but one thing; the last of the human freedoms to choose one s attitude in any given set of circumstances, to choose one s own way.
More informationLECTURE 25 Spherical Refracting Surfaces. Geometric Optics
LECTURE 25 Spherical Refracting Surfaces Geometric ptics When length scales are >> than the light s wavelength, light propagates as rays incident ray reflected ray θ θ r θ 2 refracted ray Reflection: Refraction:
More informationChapter 26 Geometrical Optics
Chapter 26 Geometrical Optics 1 Overview of Chapter 26 The Reflection of Light Forming Images with a Plane Mirror Spherical Mirrors Ray Tracing and the Mirror Equation The Refraction of Light Ray Tracing
More information12:40-2:40 3:00-4:00 PM
Physics 294H l Professor: Joey Huston l email:huston@msu.edu l office: BPS3230 l Homework will be with Mastering Physics (and an average of 1 hand-written problem per week) Help-room hours: 12:40-2:40
More informationLight: Geometric Optics
Light: Geometric Optics 23.1 The Ray Model of Light Light very often travels in straight lines. We represent light using rays, which are straight lines emanating from an object. This is an idealization,
More informationLight, Photons, and MRI
Light, Photons, and MRI When light hits an object, some of it will be reflected. The reflected light can form an image. We usually want to be able to characterize the image given what we know about the
More informationOptics II. Reflection and Mirrors
Optics II Reflection and Mirrors Geometric Optics Using a Ray Approximation Light travels in a straight-line path in a homogeneous medium until it encounters a boundary between two different media The
More informationGEOMETRIC OPTICS. LENSES refract light, so we need to know how light bends when entering and exiting a lens and how that interaction forms an image.
I. What is GEOMTERIC OPTICS GEOMETRIC OPTICS In geometric optics, LIGHT is treated as imaginary rays. How these rays interact with at the interface of different media, including lenses and mirrors, is
More informationHomework Set 3 Due Thursday, 07/14
Homework Set 3 Due Thursday, 07/14 Problem 1 A room contains two parallel wall mirrors, on opposite walls 5 meters apart. The mirrors are 8 meters long. Suppose that one person stands in a doorway, in
More informationReflection & Mirrors
Reflection & Mirrors Geometric Optics Using a Ray Approximation Light travels in a straight-line path in a homogeneous medium until it encounters a boundary between two different media A ray of light is
More informationLight and Mirrors MIRRORS
Light and Mirrors MIRRORS 1 Polarized Sunglasses- How do they work? light waves vibrate in more than one plane light waves can be made to vibrate in a single plane by use of polarizing filters. 2 polarizing
More informationChapter 23. Geometrical Optics (lecture 1: mirrors) Dr. Armen Kocharian
Chapter 23 Geometrical Optics (lecture 1: mirrors) Dr. Armen Kocharian Reflection and Refraction at a Plane Surface The light radiate from a point object in all directions The light reflected from a plane
More informationPHY 171 Lecture 6 (January 18, 2012)
PHY 171 Lecture 6 (January 18, 2012) Light Throughout most of the next 2 weeks, we will be concerned with the wave properties of light, and phenomena based on them (interference & diffraction). Light also
More informationLight Reflection. Not drawn to scale.
Physics 25 Chapter 25 Dr. Alward Light Reflection In the figure at the right, the angle of reflection for Ray 1 equals the angle of incidence. The same is true for Ray 2. Not drawn to scale. Any image
More informationGeometric Optics. The Law of Reflection. Physics Waves & Oscillations 3/20/2016. Spring 2016 Semester Matthew Jones
Physics 42200 Waves & Oscillations Lecture 27 Propagation of Light Hecht, chapter 5 Spring 2016 Semester Matthew Jones Geometric Optics Typical problems in geometric optics: Given an optical system, what
More informationUnit 11 Light and Optics Holt Chapter 14 Student Outline Light and Refraction
Holt Chapter 14 Student Outline Light and Refraction Variables introduced or used in chapter: Quantity Symbol Units Speed of light frequency wavelength angle Object Distance Image Distance Radius of Curvature
More informationSection 2 Flat Mirrors. Distinguish between specular and diffuse reflection of light. Apply the law of reflection for flat mirrors.
Section 2 Flat Mirrors Objectives Distinguish between specular and diffuse reflection of light. Apply the law of reflection for flat mirrors. Describe the nature of images formed by flat mirrors. Section
More informationLight: Geometric Optics (Chapter 23)
Light: Geometric Optics (Chapter 23) Units of Chapter 23 The Ray Model of Light Reflection; Image Formed by a Plane Mirror Formation of Images by Spherical Index of Refraction Refraction: Snell s Law 1
More informationLecture Outline Chapter 26. Physics, 4 th Edition James S. Walker. Copyright 2010 Pearson Education, Inc.
Lecture Outline Chapter 26 Physics, 4 th Edition James S. Walker Chapter 26 Geometrical Optics Units of Chapter 26 The Reflection of Light Forming Images with a Plane Mirror Spherical Mirrors Ray Tracing
More informationPart Images Formed by Flat Mirrors. This Chapter. Phys. 281B Geometric Optics. Chapter 2 : Image Formation. Chapter 2: Image Formation
Phys. 281B Geometric Optics This Chapter 3 Physics Department Yarmouk University 21163 Irbid Jordan 1- Images Formed by Flat Mirrors 2- Images Formed by Spherical Mirrors 3- Images Formed by Refraction
More informationWelcome to: Physics I. I m Dr Alex Pettitt, and I ll be your guide!
Welcome to: Physics I I m Dr Alex Pettitt, and I ll be your guide! Physics I: x Mirrors and lenses Lecture 13: 6-11-2018 Last lecture: Reflection & Refraction Reflection: Light ray hits surface Ray moves
More informationChapter 33 Continued Properties of Light. Law of Reflection Law of Refraction or Snell s Law Chromatic Dispersion Brewsters Angle
Chapter 33 Continued Properties of Light Law of Reflection Law of Refraction or Snell s Law Chromatic Dispersion Brewsters Angle Dispersion: Different wavelengths have different velocities and therefore
More informationRay Optics. Physics 11. Sources of Light Rays: Self-Luminous Objects. The Ray Model of Light
Physics 11 Ray Optics Ray Model of Light Reflection Plane Mirrors Spherical Mirrors Ray Tracing Images from a Concave Mirror Images from a Convex Mirror Slide 18-3 The Ray Model of Light Sources of Light
More informationAnnouncement on HW 8. HW 8 originally due this Wednesday, Mar. 13 Now due FRIDAY, Mar. 15 at 8:00am. Physics 102: Lecture 16, Slide 1
Announcement on HW 8 HW 8 originally due this Wednesday, Mar. 13 Now due FRIDAY, Mar. 15 at 8:00am Physics 102: Lecture 16, Slide 1 Physics 102: Lecture 16 Introduction to Mirrors Physics 102: Lecture
More informationP06 ray diagrams with concave mirrors and intro to problem solving.notebook
Ray Diagrams Concave Mirror A concave mirror is a converging mirror because parallel rays will. For any object, millions and millions of rays are reflected in all directions. Some of these rays hit the
More informationIJSO Training: Light and Colour Mini-experiment Refractive Index and Snell s Law
IJSO Training: Light and Colour Mini-experiment Refractive Index and Snell s Law Objective In this experiment, you are required to determine the refractive index of an acrylic trapezoid (or any block with
More informationCh. 25 The Reflection of Light
Ch. 25 The Reflection of Light 25. Wave fronts and rays We are all familiar with mirrors. We see images because some light is reflected off the surface of the mirror and into our eyes. In order to describe
More informationThe Role of Light to Sight
Reflection The Role of Light to Sight The visual ability of humans and other animals is the result of the complex interaction of light, eyes and brain. Absence of Light Darkness. Luminous objects are objects
More informationLight Refraction. 7. For the three situations below, draw a normal line and measure and record the angles of incidence and the angles of refraction.
Name: Light Refraction Read from Lesson 1 of the Refraction and Lenses chapter at The Physics Classroom: http://www.physicsclassroom.com/class/refrn/u14l1a.html http://www.physicsclassroom.com/class/refrn/u14l1b.html
More informationLecture Outlines Chapter 26
Lecture Outlines Chapter 26 11/18/2013 2 Chapter 26 Geometrical Optics Objectives: After completing this module, you should be able to: Explain and discuss with diagrams, reflection and refraction of light
More informationChapter 5: Light and Vision CHAPTER 5: LIGHT AND VISION
CHAPTER 5: LIGHT AND VISION These notes have been compiled in a way to make it easier or revision. The topics are not in order as per the syllabus. 5.1 Mirrors and Lenses 5.1.1 Image Characteristics Image
More informationFigure 27a3See Answer T5. A convex lens used as a magnifying glass.
F1 Figure 27a (in Answer T5) shows a diagram similar to that required, but with different dimensions. The object is between the first focus and the lens. The image is erect and virtual. The lateral magnification
More informationspeed of light in vacuum = speed of light in the material
Chapter 5 Let Us Entertain You Snell s law states that as light enters a substance such as acrylic (high index of refraction) from air (low index of refraction), the light bends toward the normal. When
More informationThe Ray model of Light. Reflection. Class 18
The Ray model of Light Over distances of a terrestrial scale light travels in a straight line. The path of a laser is now the best way we have of defining a straight line. The model of light which assumes
More informationChapter 7: Geometrical Optics
Chapter 7: Geometrical Optics 7. Reflection at a Spherical Surface L.O 7.. State laws of reflection Laws of reflection state: L.O The incident ray, the reflected ray and the normal all lie in the same
More informationEssential Physics I. Lecture 13:
Essential Physics I E I Lecture 13: 11-07-16 Reminders No lecture: Monday 18th July (holiday) Essay due: Monday 25th July, 4:30 pm 2 weeks!! Exam: Monday 1st August, 4:30 pm Announcements 250 word essay
More informationThe Reflection of Light
King Saud University College of Applied Studies and Community Service Department of Natural Sciences The Reflection of Light General Physics II PHYS 111 Nouf Alkathran nalkathran@ksu.edu.sa Outline Introduction
More informationPHY 112: Light, Color and Vision. Lecture 11. Prof. Clark McGrew Physics D 134. Review for Exam. Lecture 11 PHY 112 Lecture 1
PHY 112: Light, Color and Vision Lecture 11 Prof. Clark McGrew Physics D 134 Review for Exam Lecture 11 PHY 112 Lecture 1 From Last Time Lenses Ray tracing a Convex Lens Announcements The midterm is Thursday
More informationLIGHT & OPTICS. Fundamentals of Physics 2112 Chapter 34 1
LIGHT & OPTICS Fundamentals of Physics 22 Chapter 34 Chapter 34 Images. Two Types of Images 2. Plane Mirrors 3. Spherical Mirrors 4. Images from Spherical Mirrors 5. Spherical Refracting Surfaces 6. Thin
More informationDraw a diagram showing the fibre and the path of the ray of light. Describe one use of optical fibres in medicine. You may draw a diagram.
1 (a) (i) A ray of light passes through a length of curved optical fibre. Draw a diagram showing the fibre and the path of the ray of light. [1] Describe one use of optical fibres in medicine. You may
More informationPhysics for Scientists & Engineers 2
Geometric Optics Physics for Scientists & Engineers 2 Spring Semester 2005 Lecture 36! The study of light divides itself into three fields geometric optics wave optics quantum optics! In the previous chapter,
More informationCHAPTER 29: REFLECTION
CHAPTER 29: REFLECTION 29.1 REFLECTION The return of a wave back to its original medium is called reflection. Fasten a spring to a wall and send a pulse along the spring s length. The wall is a very rigid
More informationChapter 18 Ray Optics
Chapter 18 Ray Optics Chapter Goal: To understand and apply the ray model of light. Slide 18-1 Chapter 18 Preview Looking Ahead Text p. 565 Slide 18-2 Wavefronts and Rays When visible light or other electromagnetic
More informationnormal angle of incidence increases special angle no light is reflected
Reflection from transparent materials (Chapt. 33 last part) When unpolarized light strikes a transparent surface like glass there is both transmission and reflection, obeying Snell s law and the law of
More informationChapter 5 Mirrors and Lenses
Chapter 5 Notes: Mirrors and Lenses Name: Block: The Ray Model of Light The ray model of light represents light as a line, or ray, indicating the path of a beam of light. Light travels in straight lines
More informationPhysics 1C. Lecture 25B. "There are two ways of spreading light: to be the candle or the mirror that reflects it." --Edith Wharton
Physics 1C Lecture 25B "There are two ways of spreading light: to be the candle or the mirror that reflects it." --Edith Wharton Refraction of Light When light passes from one medium to another, it is
More informationPHYS 219 Spring semester Lecture 19: Mirrors. Ron Reifenberger Birck Nanotechnology Center Purdue University
PHYS 219 Spring semester 2016 Lecture 19: Mirrors Ron Reifenberger Birck Nanotechnology Center Purdue University PHYS 219 Test II Wednesday; March 30, 2016 6:30 PM PHYS 203 Lecture 19 1 a) Interaction
More informationToday s Topic: Refraction / Snell s Law
Today s Topic: Refraction / Snell s Law Learning Goal: Students will be able to calculate the angle of reflection of a bent light wave. Take out your notes from yesterday as we learn about Snell s Law.
More informationLight, Lenses, Mirrors
Light, Lenses, Mirrors Optics Light is Dual in nature- has both particle and wave properties. Light = range of frequencies of electromagnetic waves that stimulates the eye s retina Facts About Light It
More informationNicholas J. Giordano. Chapter 24. Geometrical Optics. Marilyn Akins, PhD Broome Community College
Nicholas J. Giordano www.cengage.com/physics/giordano Chapter 24 Geometrical Optics Marilyn Akins, PhD Broome Community College Optics The study of light is called optics Some highlights in the history
More informationImage Formed by a Plane Mirror. point object A, source of light
Today s agenda: Plane Mirrors. You must be able to draw ray diagrams for plane mirrors, and be able to calculate image and object heights, distances, and magnifications. Spherical Mirrors: concave and
More informationDispersion (23.5) Neil Alberding (SFU Physics) Physics 121: Optics, Electricity & Magnetism Spring / 17
Neil Alberding (SFU Physics) Physics 121: Optics, Electricity & Magnetism Spring 2010 1 / 17 Dispersion (23.5) The speed of light in a material depends on its wavelength White light is a mixture of wavelengths
More informationGeometrical Optics. 1 st year physics laboratories. University of Ottawa
Geometrical Optics 1 st year physics laboratories University of Ottawa https://uottawa.brightspace.com/d2l/home INTRODUCTION Geometrical optics deals with light as a ray that can be bounced (reflected)
More informationMirrors and Lenses - Ch 23 websheet 23.1
Name: Class: _ Date: _ ID: A Mirrors and Lenses - Ch 23 websheet 23. Multiple Choice Identify the choice that best completes the statement or answers the question.. What type of mirror is used whenever
More informationVideo: The Mirror. Unit #3 - Optics. Geometric Optics. A) The Law of Reflection. applications Mirrors.
Video: The Mirror http://vimeo.com/6212004 Unit #3 - Optics 11.1 - Mirrors Geometric Optics the science of how light reflects and bends optical device is any technology that uses light A) The Law of Reflection
More informationPhysics 1C. Lecture 23A. "If Dracula can t see his reflection in the mirror, how come his hair is always so neatly combed?
Physics 1C Lecture 23A "If Dracula can t see his reflection in the mirror, how come his hair is always so neatly combed?" --Steven Wright Mirror Equation You can mathematically relate the object distance,
More informationLight and Lenses Notes
Light and Lenses Notes Refraction The change in speed and direction of a wave Due to change in medium Must cross boundary at an angle other than 90 o, otherwise no change in direction I R (unlike reflection)
More informationMultiple Choice Identify the choice that best completes the statement or answers the question.
Practice Test Light Equations Multiple Choice Identify the choice that best completes the statement or answers the question. 1. Which colour of light has the shortest wavelength? a. red c. green b. blue
More informationReflection & refraction
2015 EdExcel A Level Physics 2015 EdExcel A Level Physics Topic Topic 5 5 Reflection & refraction Reflection revision Reflection is the bouncing of light rays off a surface Reflection from a mirror: Normal
More informationWaves & Oscillations
Physics 42200 Waves & Oscillations Lecture 26 Propagation of Light Hecht, chapter 5 Spring 2015 Semester Matthew Jones Geometric Optics Typical problems in geometric optics: Given an optical system, what
More informationChapter 23. Light Geometric Optics
Chapter 23. Light Geometric Optics There are 3 basic ways to gather light and focus it to make an image. Pinhole - Simple geometry Mirror - Reflection Lens - Refraction Pinhole Camera Image Formation (the
More informationPSC20 - Properties of Waves 3
PSC20 - Properties of Waves 3 The speed of light is in a vacuum. it travels 299 972 458 m/s. (rounded to m/s). Speed of light is given the symbol comes from the word meaning. How far do you think light
More informationPhysics 102: Lecture 16 Introduction to Mirrors
Physics 102: Lecture 16 Introduction to Mirrors Physics 102: Lecture 16, Slide 1 Exam II Tuesday April 1st! What will exam cover? Lectures 8 15 (Magnetic fields Polarization) What do you need to bring?
More informationPHYSICS. Chapter 34 Lecture FOR SCIENTISTS AND ENGINEERS A STRATEGIC APPROACH 4/E RANDALL D. KNIGHT
PHYSICS FOR SCIENTISTS AND ENGINEERS A STRATEGIC APPROACH 4/E Chapter 34 Lecture RANDALL D. KNIGHT Chapter 34 Ray Optics IN THIS CHAPTER, you will learn about and apply the ray model of light Slide 34-2
More informationRay Optics. Ray model Reflection Refraction, total internal reflection Color dispersion Lenses Image formation Magnification Spherical mirrors
Ray Optics Ray model Reflection Refraction, total internal reflection Color dispersion Lenses Image formation Magnification Spherical mirrors 1 Ray optics Optical imaging and color in medicine Integral
More informationWillis High School Physics Workbook Unit 7 Waves and Optics
Willis High School Physics Workbook Unit 7 Waves and Optics This workbook belongs to Period Waves and Optics Pacing Guide DAY DATE TEXTBOOK PREREADING CLASSWORK HOMEWORK ASSESSMENT M 2/25 T 2/26 W 2/27
More informationWhat is it? How does it work? How do we use it?
What is it? How does it work? How do we use it? Dual Nature http://www.youtube.com/watch?v=dfpeprq7ogc o Electromagnetic Waves display wave behavior o Created by oscillating electric and magnetic fields
More informationPhys 102 Lecture 17 Introduction to ray optics
Phys 102 Lecture 17 Introduction to ray optics 1 Physics 102 lectures on light Light as a wave Lecture 15 EM waves Lecture 16 Polarization Lecture 22 & 23 Interference & diffraction Light as a ray Lecture
More informationAP Physics: Curved Mirrors and Lenses
The Ray Model of Light Light often travels in straight lines. We represent light using rays, which are straight lines emanating from an object. This is an idealization, but is very useful for geometric
More informationLight travels in straight lines, this is referred to as... this means that light does not bend...
SNC 2DI - 10.2 Properties of Light and Reflection Light travels in straight lines, this is referred to as... this means that light does not bend... Reflection : Light travels in a straight line as long
More informationChapter 3: Mirrors and Lenses
Chapter 3: Mirrors and Lenses Chapter 3: Mirrors and Lenses Lenses Refraction Converging rays Diverging rays Converging Lens Ray tracing rules Image formation Diverging Lens Ray tracing Image formation
More informationLECTURE 17 MIRRORS AND THIN LENS EQUATION. Instructor: Kazumi Tolich
LECTURE 17 MIRRORS AND THIN LENS EQUATION Instructor: Kazumi Tolich Lecture 17 2 18.6 Image formation with spherical mirrors Concave mirrors Convex mirrors 18.7 The thin-lens equation Sign conventions
More informationPhysics 1202: Lecture 18 Today s Agenda
Physics 1202: Lecture 18 Today s Agenda Announcements: Team problems today Team 10: Alisha Kumar, Adam Saxton, Alanna Forsberg Team 11: Riley Burns, Deanne Edwards, Shauna Bolton Team 12: Kervell Baird,
More informationTEAMS National Competition Middle School Version Photometry Solution Manual 25 Questions
TEAMS National Competition Middle School Version Photometry Solution Manual 25 Questions Page 1 of 14 Photometry Questions 1. When an upright object is placed between the focal point of a lens and a converging
More informationRefraction Ch. 29 in your text book
Refraction Ch. 29 in your text book Objectives Students will be able to: 1) Identify incident and refracted angles 2) Explain what the index of refraction tells about a material 3) Calculate the index
More informationOptics Image formation from Mirrors Refracting Surfaces
Optics Image formation from Mirrors Refracting Surfaces Lana Sheridan De Anza College June 8, 2018 Last time ray diagrams and terminology image formation from mirrors Overview image formation from mirrors
More information