The Ray Model of Light
|
|
- Sharon Parker
- 5 years ago
- Views:
Transcription
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, but is very useful for geometric optics.
2 Reflection; Image Formation by a Plane Mirror Law of reflection: the angle of reflection (that the ray makes with the normal to a surface) equals the angle of incidence.
3 Law of Reflection q I = q R Mirror B q r q i A 1
4 Fermat s Principle Using Fermat s Principle you can prove the Reflection law. It states that the path taken by light when traveling from one point to another is the path that takes the shortest time compared to nearby paths. JAVA APPLET Show Fermat s principle simulator
5 Two light rays 1 and 2 taking different paths between points A and B and reflecting off a vertical mirror B Plane Mirror 2 A 1 Use calculus - method of minimization
6 t = 1 ( h 2 C 1 + y 2 + h (w - y) 2 ) dt dy = 2y h y + -2(w - y) 2 h (w - y) 2 ) = 0 y h y = (w - y) 2 h (w - y) 2 ) Write down time as a function of y and set the derivative to 0. sinq I = sinq R q I = q R
7 Reflection; Image Formation by a Plane Mirror When light reflects from a rough surface, the law of reflection still holds, but the angle of incidence varies. This is called diffuse reflection.
8 Reflection; Image Formation by a Plane Mirror With diffuse reflection, your eye sees reflected light at all angles. With specular reflection (from a mirror), your eye must be in the correct position.
9 Reflection; Image Formation by a Plane Mirror Example 32-1: Reflection from flat mirrors. Two flat mirrors are perpendicular to each other. An incoming beam of light makes an angle of 15 with the first mirror as shown. What angle will the outgoing beam make with the second mirror?
10 Reflection; Image Formation by a Plane Mirror What you see when you look into a plane (flat) mirror is an image, which appears to be behind the mirror. This is called a virtual image, as the light does not go through it. The distance of the image from the mirror is equal to the distance of the object from the mirror.
11 Reflection; Image Formation by a Plane Mirror Example : How tall must a full-length mirror be? A woman 1.60 m tall stands in front of a vertical plane mirror. What is the minimum height of the mirror, and how close must its lower edge be to the floor, if she is to be able to see her whole body? Assume her eyes are 10 cm below the top of her head.
12 ConcepTest 32.1 When watching the Moon over the ocean, you often see a long streak of light on the surface of the water. This occurs because: Reflection 1) the Moon is very large 2) atmospheric conditions are just right 3) the ocean is calm 4) the ocean is wavy 5) motion of the Moon
13 ConcepTest 32.1 When watching the Moon over the ocean, you often see a long streak of light on the surface of the water. This occurs because: Reflection 1) the Moon is very large 2) atmospheric conditions are just right 3) the ocean is calm 4) the ocean is wavy 5) motion of the Moon When the water surface changes, the angle of incidence also changes. Thus, different spots on the water can reflect the Moon into your eyes at different times. Follow-up: Where else does this occur?
14 ConcepTest 32.2a Mirror I An observer at point O is facing a mirror and observes a light source S. Where does the observer perceive the mirror image of the source to be located? O S mirror
15 ConcepTest 32.2a Mirror I An observer at point O is facing a mirror and observes a light source S. Where does the observer perceive the mirror image of the source to be located? O S mirror Trace the light rays from the object to the mirror to the eye. Since the brain assumes that light travels in a straight line, simply extend the rays back behind the mirror to locate the image. 4 Follow-up: What happens when the observer starts moving toward the mirror?
16 ConcepTest 32.2b Mirror II You stand in front of a mirror. How tall does the mirror have to be so that you can see yourself entirely? 1) same as your height 2) less than your full height but more than half your height 3) half your height 4) less than half your height 5) any size will do
17 ConcepTest 32.2b Mirror II You stand in front of a mirror. How tall does the mirror have to be so that you can see yourself entirely? 1) same as your height 2) less than your full height but more than half your height 3) half your height 4) less than half your height 5) any size will do Trace the light rays from the image s foot to the mirror and then to the eye. Since we know that q i = q r, you need a mirror only half your size.
18 ConcepTest 32.2c Mirror III Does this depend on your distance from the mirror? 1) no 2) yes 3) depends on the mirror 4) depends on the person
19 ConcepTest 32.2c Mirror III Does this depend on your distance from the mirror? 1) no 2) yes 3) depends on the mirror 4) depends on the person The farther you step back, the smaller the incident and reflected angles will be. But the rays will still be reflected at the same points, so the ray from the foot will still be reflected at midheight.
20 ConcepTest 32.3 All Smoke and Mirrors You hold a hand mirror 0.5 m in 1) 0.5 m front of you and look at your 2) 1.0 m reflection in a full-length mirror 1 m behind you. How far in back of the 3) 1.5 m big mirror do you see the image of 4) 2.0 m your face? 5) 2.5 m 1.0 m 0.5 m
21 ConcepTest 32.3 All Smoke and Mirrors You hold a hand mirror 0.5 m in 1) 0.5 m front of you and look at your 2) 1.0 m reflection in a full-length mirror 1 m behind you. How far in back of the 3) 1.5 m big mirror do you see the image of 4) 2.0 m your face? 5) 2.5 m The image of the face reflected in the 1.0 m 0.5 m small mirror appears 0.5 m behind the small mirror. This image (which is the object for the big mirror) is 2.0 m away from the big mirror. The final image is 2.0 m behind the big mirror.
Lecture 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 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 informationLECTURE 11 REFLECTION & PLANE MIRRORS. Instructor: Kazumi Tolich
LECTURE 11 REFLECTION & PLANE MIRRORS Instructor: Kazumi Tolich Lecture 11 2 Reading chapter 26.1 to 26.2 Wave fronts and rays The law of reflection Plane mirrors Wave fronts 3 The wave crests from spherical
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 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 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 informationSPH3UW Unit 7.2 Reflection Page 1 of 7
SPH3UW Unit 7.2 Reflection Page 1 of 7 Notes Physics Tool box Law of Reflection On flat surfaces, the angle of incidence equals the angle of reflection. Diffuse Reflection when light is incident on a rough
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: 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 informationRay Optics. Lecture 23. Chapter 34. Physics II. Course website:
Lecture 23 Chapter 34 Physics II Ray Optics Course website: http://faculty.uml.edu/andriy_danylov/teaching/physicsii Today we are going to discuss: Chapter 34: Section 34.1-3 Ray Optics Ray Optics Wave
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 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 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 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 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 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 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 informationLAB REFLECTION FROM A PLANE MIRROR
Name (printed) LAB REFLECTION FROM A PLANE MIRROR INTRODUCTION It s true that plane mirrors produce simpler images than curved mirrors, but they certainly aren t trivial. Ask a group of people who have
More informationPhysics 11. Unit 8 Geometric Optics Part 1
Physics 11 Unit 8 Geometric Optics Part 1 1.Review of waves In the previous section, we have investigated the nature and behaviors of waves in general. We know that all waves possess the following characteristics:
More informationLECTURE 15 REFLECTION & REFRACTION. Instructor: Kazumi Tolich
LECTURE 15 REFLECTION & REFRACTION Instructor: Kazumi Tolich Lecture 15 2 18.1 The ray model of light Source of light rays Ray diagrams Seeing objects Shadows 18.2 Reflection Diffuse reflection The plane
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 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 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 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 information3/10/2019. Models of Light. Waves and wave fronts. Wave fronts and rays
Models of Light The wave model: Under many circumstances, light exhibits the same behavior as material waves. The study of light as a wave is called wave optics. The ray model: The properties of prisms,
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 informationAt the interface between two materials, where light can be reflected or refracted. Within a material, where the light can be scattered or absorbed.
At the interface between two materials, where light can be reflected or refracted. Within a material, where the light can be scattered or absorbed. The eye sees by focusing a diverging bundle of rays from
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 informationPhysics Experiment 13
Fig. 13-1 Equipment This side of the mirror is gray. Place this side on the baseline. You can see your reflection on this side of the mirror. Fig. 13-2 Mirror Placement: The "Plexi-Ray Kit" contains a
More informationLight and the Properties of Reflection & Refraction
Light and the Properties of Reflection & Refraction OBJECTIVE To study the imaging properties of a plane mirror. To prove the law of reflection from the previous imaging study. To study the refraction
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 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 informationImages in Plane Mirrors. Monday, May 23, 16
Images in Plane Mirrors Reflection: Light bouncing off of an object and entering our eye. You can use light rays and the laws of reflection to show how a plane mirror produces a virtual image and where
More informationLight. Form of Electromagnetic Energy Only part of Electromagnetic Spectrum that we can really see
Light Form of Electromagnetic Energy Only part of Electromagnetic Spectrum that we can really see Facts About Light The speed of light, c, is constant in a vacuum. Light can be: REFLECTED ABSORBED REFRACTED
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 informationChapter 23. Geometrical Optics: Mirrors and Lenses and other Instruments
Chapter 23 Geometrical Optics: Mirrors and Lenses and other Instruments HITT1 A small underwater pool light is 1 m below the surface of a swimming pool. What is the radius of the circle of light on the
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 28 Reflection
Lecture 31 Chapter 28 Reflection Midterm 2 Monday Nov. 15 Reflection We say light is reflected when it is returned into the medium from which it came the process is reflection. When light illuminates a
More informationWavefronts and Rays. When light or other electromagnetic waves interact with systems much larger than the wavelength, it s a good approximation to
Chapter 33: Optics Wavefronts and Rays When light or other electromagnetic waves interact with systems much larger than the wavelength, it s a good approximation to Neglect the wave nature of light. Consider
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 informationChapter 34: Geometrical Optics
Chapter 34: Geometrical Optics Mirrors Plane Spherical (convex or concave) Lenses The lens equation Lensmaker s equation Combination of lenses E! Phys Phys 2435: 22: Chap. 34, 3, Pg Mirrors New Topic Phys
More informationP03 ray drawing with plane mirrors. November 06, Worlds Best Optical Illusion. Owls. Ray Diagrams.
Worlds Best Optical Illusion http://www.youtube.com/watch?v=haxm0diuyug Owls http://www.youtube.com/watch?v=hoc42xegvt8 Ray Diagrams http://www.youtube.com/watch?v=ed4jexpdwuo&feature=related 1 Locate
More informationREFLECTION & REFRACTION
REFLECTION & REFRACTION OBJECTIVE: To study and verify the laws of reflection and refraction using a plane mirror and a glass block. To see the virtual images that can be formed by the reflection and refraction
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 informationReflection of Light. 1)Students will discover how light interacts with certain types of surfaces
Reflection of Light 1)Students will discover how light interacts with certain types of surfaces 2) Students will understand the laws governing the phenomenon of reflection 3) Discover how images are formed,
More informationPhysics 9 Friday, September 28, 2018
Physics 9 Friday, September 28, 2018 Turn in HW#3. HW#4 will be due two weeks from today; I will hand out HW#4 Monday. I found a way to run both Odeon and CATT-Acoustic on MacOS without a virtual machine!
More informationChapter 23 Reflection and Refraction. Copyright 2010 Pearson Education, Inc.
Chapter 23 Reflection and Refraction C O L O R S White light contains all colors. White objects reflect all colors. Black objects absorb all colors. Green objects absorb all colors but reflect green. Red,
More information3. Confirm Does the law of reflection apply to rough surfaces? Explain. Diffuse Reflection
Light Key Concepts How does light reflect from smooth surfaces and rough surfaces? What happens to light when it strikes a concave mirror? Which types of mirrors can produce a virtual image? Reflection
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 informationLight, Reflection and Mirrors. Light Reflection
Name: Light Reflection Read from Lesson 1 of the Reflection chapter at The Physics Classroom: http://www.physicsclassroom.com/class/refln/u13l1a.html http://www.physicsclassroom.com/class/refln/u13l1b.html
More informationReflections. I feel pretty, oh so pretty
Reflections I feel pretty, oh so pretty Objectives By the end of the lesson, you should be able to: Draw an accurate reflective angle Determine the focal length of a spherical mirror Light Review Light
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 132: Lecture Fundamentals of Physics II Agenda for Today
Physics 132: Lecture Fundamentals of Physics II Agenda for Today Reflection of light Law of reflection Refraction of light Snell s law Dispersion PHY132 Lecture 17, Pg1 Electromagnetic waves A changing
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 informationReflection & Refraction
Reflection & Refraction Reflection Occurs when light hits a medium and bounces back towards the direction it came from Reflection is what allows us to see objects: Lights reflects off an object and travels
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 informationPhysics 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 informationLecture 16: Geometrical Optics. Reflection Refraction Critical angle Total internal reflection. Polarisation of light waves
Lecture 6: Geometrical Optics Reflection Refraction Critical angle Total internal reflection Polarisation of light waves Geometrical Optics Optics Branch of Physics, concerning the interaction of light
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 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 informationPHYS1004 Problem Sheet - Optics - with Solutions
PHYS004 Problem Sheet - Optics - with Solutions Do not write on these question sheets - there is not enough room to do a good job of answering these questions. The answers need to be written in your life
More informationChapter 11 Mirrors and Lenses KEY
Science 8 Physics Unit http://moodle.sd23.bc.ca/drk Question Completion Asking for Help Working in Class G I have completed all of the assigned questions, completed all diagrams, and corrected all wrong
More informationIntermediate Physics PHYS102
Intermediate Physics PHYS102 Dr Richard H. Cyburt Assistant Professor of Physics My office: 402c in the Science Building My phone: (304) 384-6006 My email: rcyburt@concord.edu My webpage: www.concord.edu/rcyburt
More informationThe Question. What are the 4 types of interactions that waves can have when they encounter an object?
The Question What are the 4 types of interactions that waves can have when they encounter an object? Waves, Wave fronts and Rays Wave Front: Crests of the waves. Rays: Lines that are perpendicular to the
More informationScience 8 Chapter 5 Section 1
Science 8 Chapter 5 Section 1 The Ray Model of Light (pp. 172-187) Models of Light wave model of light: a model in which light is a type of wave that travels through space and transfers energy from one
More informationRay Optics. Lecture 23. Chapter 23. Physics II. Course website:
Lecture 23 Chapter 23 Physics II Ray Optics Course website: http://faculty.uml.edu/andriy_danylov/teaching/physicsii Let s finish talking about a diffraction grating Diffraction Grating Let s improve (more
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 informationLecture 14: Refraction
Lecture 14: Refraction We know from experience that there are several transparent substances through which light can travel air, water, and glass are three examples When light passes from one such medium
More informationHomework #1. Reading: Chaps. 14, 20, 21, 23. Suggested exercises: 23.6, 23.7, 23.8, 23.10, 23.12, 23.13, 23.14, 23.15
Homework #1 Reading: Chaps. 14, 20, 21, 23 Suggested exercises: 23.6, 23.7, 23.8, 23.10, 23.12, 23.13, 23.14, 23.15 Problems: 23.39, 23.40, 23.41, 23.42, 23.44, 23.45, 23.47, 23.48, 23.49, 23.53, 23.54
More informationReflection and Mirrors
Reflection and Mirrors 1 The Law of Reflection The angle of incidence equals the angle of reflection. 2 The Law of Reflection When light strikes a surface it is reflected. The light ray striking the surface
More informationLecture Notes (Reflection & Mirrors)
Lecture Notes (Reflection & Mirrors) Intro: - plane mirrors are flat, smooth surfaces from which light is reflected by regular reflection - light rays are reflected with equal angles of incidence and reflection
More informationA concave mirror is a converging mirror because parallel rays will. A convex mirror is a diverging mirror because parallel rays will
Ray Diagrams Convex Mirror A concave mirror is a converging mirror because parallel rays will. A convex mirror is a diverging mirror because parallel rays will. Quick Activity obtain a ray box and a curved
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 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 informationLecture Presentation Chapter 18 Ray Optics
Lecture Presentation Chapter 18 Ray Optics Suggested Videos for Chapter 18 Prelecture Videos Mirrors and Reflection Refraction Lenses and Images Video Tutor Solutions Ray Optics Class Videos Scattering
More information3 Interactions of Light Waves
CHAPTER 22 3 Interactions of Light Waves SECTION The Nature of Light BEFORE YOU READ After you read this section, you should be able to answer these questions: How does reflection affect the way we see
More information1.54 Law of Reflection
1.54 Law of Reflection Define reflection and image. Compare and contrast regular and diffuse reflection. State the law of reflection. 193 1.54. Law of Reflection www.ck12.org This dancer is practicing
More information26 Geometric Optics, Reflection
26 Geometric Optics, Reflection We now turn to a branch of optics referred to as geometric optics and also referred to as ray optics. It applies in cases where the dimensions of the objects (and apertures)
More informationUnit 3: Chapter 5. Reflection
Unit 3: Chapter 5 Reflection The Law of Reflection To show how light is reflected from a solid surface, we can use ray diagrams. A ray diagram has 5 main components: this is the incoming ray that will
More informationName Section Date. Experiment Reflection and Refraction
Name Section Date Introduction: Experiment Reflection and Refraction The travel of light is often represented in geometric optics by a light ray, a line that is drawn to represent the straight-line movement
More informationShedding Light on Reflection Question Sheet Name: Part A: Light Reflection 1. What is a luminous object? Give three examples.
Shedding Light on Reflection Question Sheet Name: Part A: Light Reflection 1. What is a luminous object? Give three examples. 2. How is it possible that we can see non-luminous objects if they re not actually
More informationOptics Homework. Assignment #2. Assignment #1. Textbook: Read Section 23-1 and 23-2
Optics Homework Assignment #1 Textbook: Read Section 22-3 (Honors only) Textbook: Read Section 23-1 Online: Reflection Lesson 1a: * problems are for all students ** problems are for honors physics 1. *
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 informationUnit 3: Optics Chapter 4
Unit 3: Optics Chapter 4 History of Light https://www.youtube.com/watch?v=j1yiapztlos History of Light Early philosophers (Pythagoras) believed light was made up of tiny particles Later scientist found
More informationPhysics 1230: Light and Color. Projects
Physics 1230: Light and Color Chuck Rogers, Charles.Rogers@colorado.edu Matt Heinemann, Matthew.Heinemann@colorado.edu www.colorado.edu/physics/phys1230 Exam 2 tomorrow, here. HWK 6 is due at 5PM Thursday.
More informationOptics. a- Before the beginning of the nineteenth century, light was considered to be a stream of particles.
Optics 1- Light Nature: a- Before the beginning of the nineteenth century, light was considered to be a stream of particles. The particles were either emitted by the object being viewed or emanated from
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 informationLight & Optical Systems Reflection & Refraction. Notes
Light & Optical Systems Reflection & Refraction Notes What is light? Light is electromagnetic radiation Ultra-violet + visible + infra-red Behavior of Light Light behaves in 2 ways particles (photons)
More informationReflection and Refraction
Reflection and Refraction Theory: Whenever a wave traveling in some medium encounters an interface or boundary with another medium either (or both) of the processes of (1) reflection and (2) refraction
More information2/26/2016. Chapter 23 Ray Optics. Chapter 23 Preview. Chapter 23 Preview
Chapter 23 Ray Optics Chapter Goal: To understand and apply the ray model of light. Slide 23-2 Chapter 23 Preview Slide 23-3 Chapter 23 Preview Slide 23-4 1 Chapter 23 Preview Slide 23-5 Chapter 23 Preview
More informationUniversity Physics 227N/232N Chapters 30-32: Optics Homework Optics 1 Due This Friday at Class Time Quiz This Friday
University Physics 227N/232N Chapters 30-32: Optics Homework Optics 1 Due This Friday at Class Time Quiz This Friday Dr. Todd Satogata (ODU/Jefferson Lab) satogata@jlab.org http://www.toddsatogata.net/2014-odu
More informationTextbook Reference: Glencoe Physics: Chapters 16-18
Honors Physics-121B Geometric Optics Introduction: A great deal of evidence suggests that light travels in straight lines. A source of light like the sun casts distinct shadows. We can hear sound from
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 informationNORTHERN ILLINOIS UNIVERSITY PHYSICS DEPARTMENT. Physics 211 E&M and Quantum Physics Spring Lab #7: Reflection & Refraction
NORTHERN ILLINOIS UNIVERSITY PHYSICS DEPARTMENT Physics 211 E&M and Quantum Physics Spring 2018 Lab #7: Reflection & Refraction Lab Writeup Due: Mon/Wed/Thu/Fri, March 26/28/29/30, 2018 Background Light
More informationUnit 3: Optics Chapter 4
Unit 3: Optics Chapter 4 History of Light https://www.youtube.com/watch?v=j1yiapztlos History of Light Early philosophers (Pythagoras) believed light was made up of tiny particles Later scientist found
More informationLight. Electromagnetic wave with wave-like nature Refraction Interference Diffraction
Light Electromagnetic wave with wave-like nature Refraction Interference Diffraction Light Electromagnetic wave with wave-like nature Refraction Interference Diffraction Photons with particle-like nature
More informationLecture 36: FRI 17 APR
Physics 2102 Jonathan Dowling Lecture 36: FRI 17 APR 34.1 4: Geometrical optics Geometrical Optics Geometrical optics (rough approximation): light rays ( particles ) that travel in straight lines. Physical
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 informationLecture 7 Notes: 07 / 11. Reflection and refraction
Lecture 7 Notes: 07 / 11 Reflection and refraction When an electromagnetic wave, such as light, encounters the surface of a medium, some of it is reflected off the surface, while some crosses the boundary
More information