!"#$%&$'()(*'+,&-./,'(0' focal point! parallel rays! converging lens" image of an object in a converging lens" converging lens: 3 easy rays" !
|
|
- Bonnie Jessica Lester
- 6 years ago
- Views:
Transcription
1 !"#$%&$'()(*'+,&-./,'(0' converging lens"! +,7$,$'! 8,9/4&:27'473'+,7$,$'! 84#';%4</4=$'! +,7$'>?.4:27' 1",'A.=47'>#,*'+,7$,$'473'B4<7%C,/$' B%&/2$&26,$''! 1,E,$&26,$' parallel rays! focal length f! focal point! demo: white board! converging lens: 3 easy rays" image of an object in a converging lens" horizontal ray goes through focal point behind lens! ray through center of lens is undeflected! ray that goes through focal point in front of lens is deflected to be horizontal behind lens!
2 image of an object in a converging lens" converging lens" optical axis! optical axis! image! converging lens" Derivation of lens equation (1)" f! 1! 1! +! 1! =! f! lens formula! o-f! h o! h o = height of object! from similar triangles,! f! h i! h i = height of image! bb! h o h i = o " f f
3 Derivation of lens equation (2)" Derivation of lens equation (3)" h o! o! i! h o h i = o " f f and! o i = h o h i h o = height of object! from similar triangles,! i = o h i h o " h o h i = o i h i! h i = height of image! So,! o = o " f i f o = o i f "1 1 i = 1 f " 1 o 1 i + 1 o = 1 f Lens equation! magnification" magnification M" h h h h f! f! f! f! h i! h =! h i =! h = M!
4 magnification" M = -! magnification" M = -! h h h h i < o! M < 1! i < o! M < 1! h h i > o! M > 1! o = "! magnification" f! 1! 1! +! =! "! i = f! 1! f! M = - = = 0! "! converging lens with object distance < focal distance" f! f! 1! 1! +! 1! =! f! i < 0 (negative)! the image is virtual!! M = > 1! magnifying lens!
5 summary: converging lens" example problem: projector" converging lens, o = "! converging lens, o > f! converging lens, o < f! You set up a projector so that it is in focus, but the image is too small, and you move the projector farther from the screen.! 1. Is the lens in the projector a converging lens or a diverging lens?! real image in focal point! M = -i/" = 0! real inverted image! M = -i/o < 0! virtual upright image! M = -i/o > 1! M < 0!! {!!! M > 1! BUT: possible!! M < 1! example problem: projector" example problem: projector" You set up a projector so that it is in focus, but the image is too small, and you move the projector farther from the screen.! You set up a slide projector so that it is in focus, but the image is too small, and you move the projector farther from the screen.! 1. Is the lens in the projector a converging lens or a diverging lens?! 1. Is the lens in the projector a converging lens or a diverging lens?! A converging lens. Any lens that makes a real image that can be seen on a screen is a converging lens.! 2. After you move the projector back, to focus the image again do you move the slide closer to or farther from the focal point of the lens?!
6 example problem: projector" You set up a slide projector so that it is in focus, but the image is too small, and you move the projector farther from the screen.! 1. Is the lens in the projector a converging lens or a diverging lens?! A converging lens. Any lens that makes a real image that can be seen on a screen is a converging lens.! 2. After you move the projector back, to focus the image again do you move the slide closer to or farther from the focal point of the lens?!!closer to the focal point! f = 10 cm! i=?! example problem: converging lens" 1.!o = 20 cm! 2.!Object farther away!!o = 50 cm!!o " "! 3.!Object closer than f!!o = 4 cm! bb! f = 10 cm! i=?! example problem: converging lens" 1 o + 1 i = 1 f 1.!o = 20 cm!!!!i = 20 cm!!m = 1! 2.!Object farther away!!!!!o = 50 cm!!!!i = 12.5 cm!m = 0.25!!o " "!!!!!i " f!!m " 0! A nice applet for understanding converging lenses:" 3.!Object closer than f!!o = 4 cm!!!!i = -6.7 cm!m = 1.7!
7 Images Formed by Converging Lens " f > 0 1 i + 1 o = 1 f M = h i h o =! i o Object (O) is in front of F 1 : real, inverted, enlarged or reduced! diverging lens" 1! f < 0! =! 1! f! -! 1! f > 0 1 i + 1 o = 1 f M = h i h o =! i o i < 0# virtual image # for any # Object (O) in between F 1 and lens: virtual, upright, enlarged.! 25! diverging lens: 3 easy rays" horizontal ray is deflected so that it extrapolates back to focal point in front of lens! diverging lens" ray from object to focal point in back of lens is deflected so that it is horizontal! ray that goes through center of lens this ray is undeflected! bb: 3 easy rays! bb2: 3 easy rays!
8 diverging lens" diverging lens" diverging lens" diverging lens"
9 diverging lens" diverging lens: object at infinity" virtual upright image! diverging lens: object at infinity" diverging lens: o < f" image in focal point!
10 diverging lens: o < f" diverging lens: o < f" diverging lens: o < f" diverging lens: o < f" virtual upright image!
11 diverging lens" Images Formed by Diverging Lenses" f < 0 1 o + 1 i = 1 f M = h i h o =! i o image is#!virtual#!right-side-up#!in front of lens! Images are always virtual, upright, and reduced! Images are always virtual, upright, and reduced! 42! Summary of sign conventions" Converging and Diverging Lenses" >0 <0 f concave mirrors converging lens convex mirrors diverging lens o object side the other side i real virtual M=-i/o upright inverted sign convention:! f>0! Real Virtual mirrors front behind lenses behind font 43! 44! sign convention:! f<0!
12 M = M 1 M 2 Combination of Lenses" Cameras " A camera is essentially a converging lens with a short focal length. (Operating condition: o>>f! i ~ f)! 45! o 46! i Eyes" The eye is essentially an auto-focus camera! Psychological size! (image size on retinal)! is determined by!" Simple Magnifier" A simple magnifier is essentially also a converging lens with a short focal length.! Operating condition: o<f and i~-25 cm! Simple magnifiers magnify the opening angle an object subtends at the eye (i.e. psychological size)! angular magnification:! m = #/# 0! = 25cm/f for near point! Quick quiz: Is the image on retina real/virtual,! upright/inverted?! 47! 48!
13 Compound Microscopes (cont)" Robert Hooke s Microscope! (1665)! Compound Microscope" Compound microscope also does angular magnification.! Configuration: L >> f e +f o! 49! Final Image: Virtual, inverted 50! M o ~L/f M e =25 cm/f e! M=M o M e! = (L/f o ) (25 cm/f e )! Telescopes (cont)" Telescopes" Telescope is another type of angular magnification device with configuration L ~f e +f o! Galileo s Telescope! 51! M o = f o /f e! 52! Note: For telescope application, object distance can not be adjusted.
Complete the diagram to show what happens to the rays. ... (1) What word can be used to describe this type of lens? ... (1)
Q1. (a) The diagram shows two parallel rays of light, a lens and its axis. Complete the diagram to show what happens to the rays. (2) Name the point where the rays come together. (iii) What word can be
More informationPhysics 222, October 25
Physics 222, October 25 Key Concepts: Image formation by refraction Thin lenses The eye Optical instruments A single flat interface Images can be formed by refraction, when light traverses a boundary between
More information2015 EdExcel A Level Physics EdExcel A Level Physics. Lenses
2015 EdExcel A Level Physics 2015 EdExcel A Level Physics Topic Topic 5 5 Lenses Types of lenses Converging lens bi-convex has two convex surfaces Diverging lens bi-concave has two concave surfaces Thin
More informationGeneral Physics II. Optical Instruments
General Physics II Optical Instruments 1 The Thin-Lens Equation 2 The Thin-Lens Equation Using geometry, one can show that 1 1 1 s+ =. s' f The magnification of the lens is defined by For a thin lens,
More informationThere is a range of distances over which objects will be in focus; this is called the depth of field of the lens. Objects closer or farther are
Chapter 25 Optical Instruments Some Topics in Chapter 25 Cameras The Human Eye; Corrective Lenses Magnifying Glass Telescopes Compound Microscope Aberrations of Lenses and Mirrors Limits of Resolution
More informationActivity 6.1 Image Formation from Spherical Mirrors
PHY385H1F Introductory Optics Practicals Day 6 Telescopes and Microscopes October 31, 2011 Group Number (number on Intro Optics Kit):. Facilitator Name:. Record-Keeper Name: Time-keeper:. Computer/Wiki-master:..
More informationOptics Practice. Version #: 0. Name: Date: 07/01/2010
Optics Practice Date: 07/01/2010 Version #: 0 Name: 1. Which of the following diagrams show a real image? a) b) c) d) e) i, ii, iii, and iv i and ii i and iv ii and iv ii, iii and iv 2. A real image is
More informationGeometric Optics Practice Problems. Ray Tracing - Draw at least two principle rays and show the image created by the lens or mirror.
Geometric Optics Practice Problems Ray Tracing - Draw at least two principle rays and show the image created by the lens or mirror. 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. Practice Problems - Mirrors Classwork
More informationConverging and Diverging Surfaces. Lenses. Converging Surface
Lenses Sandy Skoglund 2 Converging and Diverging s AIR Converging If the surface is convex, it is a converging surface in the sense that the parallel rays bend toward each other after passing through the
More informationChapter 24 Geometrical Optics. Copyright 2010 Pearson Education, Inc.
Chapter 24 Geometrical Optics Lenses convex (converging) concave (diverging) Mirrors Ray Tracing for Mirrors We use three principal rays in finding the image produced by a curved mirror. The parallel ray
More informationLaboratory 7: Properties of Lenses and Mirrors
Laboratory 7: Properties of Lenses and Mirrors Converging and Diverging Lens Focal Lengths: A converging lens is thicker at the center than at the periphery and light from an object at infinity passes
More informationWaves & Oscillations
Physics 42200 Waves & Oscillations Lecture 27 Geometric Optics Spring 205 Semester Matthew Jones Sign Conventions > + = Convex surface: is positive for objects on the incident-light side is positive for
More informationLECTURE 17 MIRRORS AND THIN LENS EQUATION
LECTURE 17 MIRRORS AND THIN LENS EQUATION 18.6 Image formation with spherical mirrors Concave mirrors Convex mirrors 18.7 The thin-lens equation Sign conventions for lenses and mirrors Spherical mirrors
More informationChapter 2 - Geometric Optics
David J. Starling Penn State Hazleton PHYS 214 The human eye is a visual system that collects light and forms an image on the retina. The human eye is a visual system that collects light and forms an image
More informationLecture Outline Chapter 27. Physics, 4 th Edition James S. Walker. Copyright 2010 Pearson Education, Inc.
Lecture Outline Chapter 27 Physics, 4 th Edition James S. Walker Chapter 27 Optical Instruments Units of Chapter 27 The Human Eye and the Camera Lenses in Combination and Corrective Optics The Magnifying
More informationPHY 1160C Homework Chapter 26: Optical Instruments Ch 26: 2, 3, 5, 9, 13, 15, 20, 25, 27
PHY 60C Homework Chapter 26: Optical Instruments Ch 26: 2, 3, 5, 9, 3, 5, 20, 25, 27 26.2 A pin-hole camera is used to take a photograph of a student who is.8 m tall. The student stands 2.7 m in front
More informationChapter 36. Image Formation
Chapter 36 Image Formation Real and Virtual Images Real images can be displayed on screens Virtual Images can not be displayed onto screens. Focal Length& Radius of Curvature When the object is very far
More informationLecture 17. Image formation Ray tracing Calculation. Lenses Convex Concave. Mirrors Convex Concave. Optical instruments
Lecture 17. Image formation Ray tracing Calculation Lenses Convex Concave Mirrors Convex Concave Optical instruments Image formation Laws of refraction and reflection can be used to explain how lenses
More informationLecture 21. Physics 1202: Lecture 21 Today s Agenda
Physics 1202: Lecture 21 Today s Agenda Announcements: Team problems today Team 14: Gregory Desautels, Benjamin Hallisey, Kyle Mcginnis Team 15: Austin Dion, Nicholas Gandza, Paul Macgillis-Falcon Homework
More informationReading: Lenses and Mirrors; Applications Key concepts: Focal points and lengths; real images; virtual images; magnification; angular magnification.
Reading: Lenses and Mirrors; Applications Key concepts: Focal points and lengths; real images; virtual images; magnification; angular magnification. 1.! Questions about objects and images. Can a virtual
More informationGeometric Optics. Objective: To study the basics of geometric optics and to observe the function of some simple and compound optical devices.
Geometric Optics Objective: To study the basics of geometric optics and to observe the function of some simple and compound optical devices. Apparatus: Pasco optical bench, mounted lenses (f= +100mm, +200mm,
More informationChapter 34. Images. Copyright 2014 John Wiley & Sons, Inc. All rights reserved.
Chapter 34 Images Copyright 34-1 Images and Plane Mirrors Learning Objectives 34.01 Distinguish virtual images from real images. 34.02 Explain the common roadway mirage. 34.03 Sketch a ray diagram for
More informationPhysics Chapter Review Chapter 25- The Eye and Optical Instruments Ethan Blitstein
Physics Chapter Review Chapter 25- The Eye and Optical Instruments Ethan Blitstein The Human Eye As light enters through the human eye it first passes through the cornea (a thin transparent membrane of
More informationPhy Ph s y 102 Lecture Lectur 21 Optical instruments 1
Phys 102 Lecture 21 Optical instruments 1 Today we will... Learn how combinations of lenses form images Thin lens equation & magnification Learn about the compound microscope Eyepiece & objective Total
More informationPhysics 1202: Lecture 19 Today s Agenda
Physics 1202: Lecture 19 Today s Agenda Announcements: Team problems today Team 12: Kervell Baird, Matthew George, Derek Schultz Team 13: Paxton Stowik, Stacey Ann Burke Team 14: Gregory Desautels, Benjamin
More informationDr. Todd Satogata (ODU/Jefferson Lab) Monday, April
University Physics 227N/232N Mirrors and Lenses Homework Optics 2 due Friday AM Quiz Friday Optional review session next Monday (Apr 28) Bring Homework Notebooks to Final for Grading Dr. Todd Satogata
More informationPhys 102 Lecture 21 Optical instruments
Phys 102 Lecture 21 Optical instruments 1 Today we will... Learn how combinations of lenses form images Thin lens equation & magnification Learn about the compound microscope Eyepiece & objective Total
More informationOption G 2: Lenses. The diagram below shows the image of a square grid as produced by a lens that does not cause spherical aberration.
Name: Date: Option G 2: Lenses 1. This question is about spherical aberration. The diagram below shows the image of a square grid as produced by a lens that does not cause spherical aberration. In the
More informationConverging Lenses. Parallel rays are brought to a focus by a converging lens (one that is thicker in the center than it is at the edge).
Chapter 30: Lenses Types of Lenses Piece of glass or transparent material that bends parallel rays of light so they cross and form an image Two types: Converging Diverging Converging Lenses Parallel rays
More informationChapter 18 Optical Elements
Chapter 18 Optical Elements GOALS When you have mastered the content of this chapter, you will be able to achieve the following goals: Definitions Define each of the following terms and use it in an operational
More informationChapter 34 Geometric Optics
Chapter 34 Geometric Optics Lecture by Dr. Hebin Li Goals of Chapter 34 To see how plane and curved mirrors form images To learn how lenses form images To understand how a simple image system works Reflection
More informationGaussian Ray Tracing Technique
Gaussian Ray Tracing Technique Positive Lenses. A positive lens has two focal points one on each side of the lens; both are at the same focal distance f from the lens. Parallel rays of light coming from
More informationPhysics 228 Lecture 3. Today: Spherical Mirrors Lenses.
Physics 228 Lecture 3 Today: Spherical Mirrors Lenses www.physics.rutgers.edu/ugrad/228 a) Santa as he sees himself in a mirrored sphere. b) Santa as he sees himself in a flat mirror after too much eggnog.
More informationPhysics 132: Lecture Fundamentals of Physics
Physics 132: Lecture Fundamentals of Physics II Agenda for Today Mirrors Concave Convex e Mirror equation Physics 201: Lecture 1, Pg 1 Curved mirrors A Spherical Mirror: section of a sphere. R light ray
More informationGeometric Optics. Ray Model. assume light travels in straight line uses rays to understand and predict reflection & refraction
Geometric Optics Ray Model assume light travels in straight line uses rays to understand and predict reflection & refraction General Physics 2 Geometric Optics 1 Reflection Law of reflection the angle
More informationAlgebra Based Physics. Reflection. Slide 1 / 66 Slide 2 / 66. Slide 3 / 66. Slide 4 / 66. Slide 5 / 66. Slide 6 / 66.
Slide 1 / 66 Slide 2 / 66 Algebra Based Physics Geometric Optics 2015-12-01 www.njctl.org Slide 3 / 66 Slide 4 / 66 Table of ontents lick on the topic to go to that section Reflection Refraction and Snell's
More informationREFLECTION THROUGH LENS
REFLECTION THROUGH LENS A lens is a piece of transparent optical material with one or two curved surfaces to refract light rays. It may converge or diverge light rays to form an image. Lenses are mostly
More informationCHAPTER 18 REFRACTION & LENSES
Physics Approximate Timeline Students are expected to keep up with class work when absent. CHAPTER 18 REFRACTION & LENSES Day Plans for the day Assignments for the day 1 18.1 Refraction of Light o Snell
More informationName: Lab Partner: Section:
Chapter 10 Thin Lenses Name: Lab Partner: Section: 10.1 Purpose In this experiment, the formation of images by concave and convex lenses will be explored. The application of the thin lens equation and
More informationmirrors and lenses PHY232 Remco Zegers Room W109 cyclotron building
mirrors and lenses PHY232 Remco Zegers zegers@nscl.msu.edu Room W109 cyclotron building http://www.nscl.msu.edu/~zegers/phy232.html quiz (extra credit) a ray of light moves from air to a material with
More informationPHYSICS FOR THE IB DIPLOMA CAMBRIDGE UNIVERSITY PRESS
Option C Imaging C Introduction to imaging Learning objectives In this section we discuss the formation of images by lenses and mirrors. We will learn how to construct images graphically as well as algebraically.
More informationKing Saud University College of Science Physics & Astronomy Dept.
King Saud University College of Science Physics & Astronomy Dept. PHYS 111 (GENERAL PHYSICS 2) CHAPTER 36: Image Formation LECTURE NO. 9 Presented by Nouf Saad Alkathran 36.1 Images Formed by Flat Mirrors
More informationPhysics 6C. Cameras and the Human Eye. Prepared by Vince Zaccone For Campus Learning Assistance Services at UCSB
Physics 6C Cameras and the Human Eye CAMERAS A typical camera uses a converging lens to focus a real (inverted) image onto photographic film (or in a digital camera the image is on a CCD chip). Light goes
More informationChapter 36. Image Formation
Chapter 36 Image Formation Image of Formation Images can result when light rays encounter flat or curved surfaces between two media. Images can be formed either by reflection or refraction due to these
More informationChapter 36. Image Formation
Chapter 36 Image Formation Notation for Mirrors and Lenses The object distance is the distance from the object to the mirror or lens Denoted by p The image distance is the distance from the image to the
More informationPHYS 160 Astronomy. When analyzing light s behavior in a mirror or lens, it is helpful to use a technique called ray tracing.
Optics Introduction In this lab, we will be exploring several properties of light including diffraction, reflection, geometric optics, and interference. There are two sections to this lab and they may
More informationAlgebra Based Physics. Reflection. Slide 1 / 66 Slide 2 / 66. Slide 3 / 66. Slide 4 / 66. Slide 5 / 66. Slide 6 / 66.
Slide 1 / 66 Slide 2 / 66 lgebra ased Physics Geometric Optics 2015-12-01 www.njctl.org Slide 3 / 66 Slide 4 / 66 Table of ontents lick on the topic to go to that section Reflection Refraction and Snell's
More informationChapter 34: Geometrical Optics (Part 2)
Chapter 34: Geometrical Optics (Part 2) Brief review Optical instruments Camera Human eye Magnifying glass Telescope Microscope Optical Aberrations Phys Phys 2435: 22: Chap. 34, 31, Pg 1 The Lens Equation
More informationSection 3 Curved Mirrors. Calculate distances and focal lengths using the mirror equation for concave and convex spherical mirrors.
Objectives Calculate distances and focal lengths using the mirror equation for concave and convex spherical mirrors. Draw ray diagrams to find the image distance and magnification for concave and convex
More informationChapter 23. Mirrors and Lenses
Chapter 23 Mirrors and Lenses Mirrors and Lenses The development of mirrors and lenses aided the progress of science. It led to the microscopes and telescopes. Allowed the study of objects from microbes
More informationTypes of lenses. Shown below are various types of lenses, both converging and diverging.
Types of lenses Shown below are various types of lenses, both converging and diverging. Any lens that is thicker at its center than at its edges is a converging lens with positive f; and any lens that
More informationLENSES. A lens is any glass, plastic or transparent refractive medium with two opposite faces, and at least one of the faces must be curved.
1 LENSES A lens is any glass, plastic or transparent refractive medium with two opposite faces, and at least one of the faces must be curved. Types of Lenses There are two types of basic lenses: Converging/
More informationChapter 9 - Ray Optics and Optical Instruments. The image distance can be obtained using the mirror formula:
Question 9.1: A small candle, 2.5 cm in size is placed at 27 cm in front of a concave mirror of radius of curvature 36 cm. At what distance from the mirror should a screen be placed in order to obtain
More informationMirrors, Lenses &Imaging Systems
Mirrors, Lenses &Imaging Systems We describe the path of light as straight-line rays And light rays from a very distant point arrive parallel 145 Phys 24.1 Mirrors Standing away from a plane mirror shows
More informationAberrations, Camera, Eye
Aberrations, Camera, Eye This is a question that we probably can't answer. If the Invisible Man is also blind because no light is being absorbed by his retinas, then when we die and become spirits that
More informationPhysics 208 Spring 2008 Lab 2: Lenses and the eye
Name Section Physics 208 Spring 2008 Lab 2: Lenses and the eye Your TA will use this sheet to score your lab. It is to be turned in at the end of lab. You must use complete sentences and clearly explain
More informationPhysics 132: Lecture Fundamentals of Physics II
Physics 132: Lecture Fundamentals of Physics II Mirrors Agenda for Today Concave Convex Mirror equation Curved mirrors A Spherical Mirror: section of a sphere. R light ray C Concave mirror principal axis
More informationGaussian Ray Tracing Technique
Gaussian Ray Tracing Technique Positive Lenses. A positive lens has two focal points one on each side of the lens; both are at the same focal distance f from the lens. Parallel rays of light coming from
More informationChapter 29/30. Wave Fronts and Rays. Refraction of Sound. Dispersion in a Prism. Index of Refraction. Refraction and Lenses
Chapter 29/30 Refraction and Lenses Refraction Refraction the bending of waves as they pass from one medium into another. Caused by a change in the average speed of light. Analogy A car that drives off
More informationThin Lenses. Physics 227 Lab. Introduction:
Introduction: From last week's lab, Reflection and Refraction, you should already be familiar with the following terms: principle axis, focal point, focal length,f, converging lens (f is +), and diverging
More informationPhysics 102: Lecture 19 Lenses and your EYE Ciliary Muscles
Physics 02: Lecture 9 Lenses and your EYE Ciliary Muscles Physics 02: Lecture 9, Slide 3 Cases for Converging Lenses Object Past 2F Image Inverted Reduced Real Object Between F & 2F Image Inverted Enlarged
More informationLight: Lenses and. Mirrors. Test Date: Name 1ÿ-ÿ. Physics. Light: Lenses and Mirrors
Name 1ÿ-ÿ Physics Light: Lenses and Mirrors i Test Date: "Shadows cannot see themselves in the mirror of the sun." -Evita Peron What are lenses? Lenses are made from transparent glass or plastice and refract
More informationJPN Pahang Physics Module Form 4 Chapter 5 Light. In each of the following sentences, fill in the bracket the appropriate word or words given below.
JPN Pahang Physics Module orm 4 HAPTER 5: LIGHT In each of the following sentences, fill in the bracket the appropriate word or words given below. solid, liquid, gas, vacuum, electromagnetic wave, energy
More information2. The radius of curvature of a spherical mirror is 20 cm. What is its focal length?
1. Define the principle focus of a concave mirror? The principle focus of a concave mirror is a point on its principle axis to which all the light rays which are parallel and close to the axis, converge
More informationLenses- Worksheet. (Use a ray box to answer questions 3 to 7)
Lenses- Worksheet 1. Look at the lenses in front of you and try to distinguish the different types of lenses? Describe each type and record its characteristics. 2. Using the lenses in front of you, look
More informationCH. 23 Mirrors and Lenses HW# 6, 7, 9, 11, 13, 21, 25, 31, 33, 35
CH. 23 Mirrors and Lenses HW# 6, 7, 9, 11, 13, 21, 25, 31, 33, 35 Mirrors Rays of light reflect off of mirrors, and where the reflected rays either intersect or appear to originate from, will be the location
More informationPHYSICS 289 Experiment 8 Fall Geometric Optics II Thin Lenses
PHYSICS 289 Experiment 8 Fall 2005 Geometric Optics II Thin Lenses Please look at the chapter on lenses in your text before this lab experiment. Please submit a short lab report which includes answers
More informationCHAPTER 3LENSES. 1.1 Basics. Convex Lens. Concave Lens. 1 Introduction to convex and concave lenses. Shape: Shape: Symbol: Symbol:
CHAPTER 3LENSES 1 Introduction to convex and concave lenses 1.1 Basics Convex Lens Shape: Concave Lens Shape: Symbol: Symbol: Effect to parallel rays: Effect to parallel rays: Explanation: Explanation:
More informationUniversity of Rochester Department of Physics and Astronomy Physics123, Spring Homework 5 - Solutions
Problem 5. University of Rochester Department of Physics and Astronomy Physics23, Spring 202 Homework 5 - Solutions An optometrist finds that a farsighted person has a near point at 25 cm. a) If the eye
More informationUnit 2: Optics Part 2
Unit 2: Optics Part 2 Refraction of Visible Light 1. Bent-stick effect: When light passes from one medium to another (for example, when a beam of light passes through air and into water, or vice versa),
More informationPhysics 141 Lecture 28
Physics 141 Lecture 28 Today s Concept: A) Op3cal Devices Electricity & Magne/sm Lecture 28, Slide 1 Executive Summary Mirrors & Lenses: S > 2f real inverted smaller f > 0 2f > S > f real inverted bigger
More informationReflection and Refraction of Light
Reflection and Refraction of Light Physics 102 28 March 2002 Lecture 6 28 Mar 2002 Physics 102 Lecture 6 1 Light waves and light rays Last time we showed: Time varying B fields E fields B fields to create
More informationFinal Reg Optics Review SHORT ANSWER. Write the word or phrase that best completes each statement or answers the question.
Final Reg Optics Review 1) How far are you from your image when you stand 0.75 m in front of a vertical plane mirror? 1) 2) A object is 12 cm in front of a concave mirror, and the image is 3.0 cm in front
More informationUNIT SUMMARY: Electromagnetic Spectrum, Color, & Light Name: Date:
UNIT SUMMARY: Electromagnetic Spectrum, Color, & Light Name: Date: Topics covered in the unit: 1. Electromagnetic Spectrum a. Order of classifications and respective wavelengths b. requency, wavelength,
More informationLab 11: Lenses and Ray Tracing
Name: Lab 11: Lenses and Ray Tracing Group Members: Date: TA s Name: Materials: Ray box, two different converging lenses, one diverging lens, screen, lighted object, three stands, meter stick, two letter
More informationGeometric Optics. This is a double-convex glass lens mounted in a wooden frame. We will use this as the eyepiece for our microscope.
I. Before you come to lab Read through this handout in its entirety. II. Learning Objectives As a result of performing this lab, you will be able to: 1. Use the thin lens equation to determine the focal
More informationPhysics Worksheet. Topic -Light. Q1 If the radius of curvature of spherical mirror is 20 cm, what is its focal length.
Physics Worksheet Topic -Light Q1 If the radius of curvature of spherical mirror is 20 cm, what is its focal length. (Ans: 10 cm) Q2 Calculate the radius of curvature of spherical mirror whose focal length
More informationPhysics 1C. Lecture 25B
Physics 1C Lecture 25B "More than 50 years ago, Austrian researcher Ivo Kohler gave people goggles thats severely distorted their vision: The lenses turned the world upside down. After several weeks, subjects
More informationChapter 36. Image Formation
Chapter 36 Image Formation Image of Formation Images can result when light rays encounter flat or curved surfaces between two media. Images can be formed either by reflection or refraction due to these
More informationRefraction by Spherical Lenses by
Page1 Refraction by Spherical Lenses by www.examfear.com To begin with this topic, let s first know, what is a lens? A lens is a transparent material bound by two surfaces, of which one or both the surfaces
More informationLenses. A transparent object used to change the path of light Examples: Human eye Eye glasses Camera Microscope Telescope
SNC2D Lenses A transparent object used to change the path of light Examples: Human eye Eye glasses Camera Microscope Telescope Reading stones used by monks, nuns, and scholars ~1000 C.E. Lenses THERE ARE
More informationGeometric Optics. This equation is known as the mirror equation or the thin lens equation, depending on the setup.
Geometric Optics Purpose (Write the purposes at the beginning of each problem.) Problem 1: find the focal length of a concave mirror to verify the mirror equation; Problem 2: find the focal length of a
More informationDetermination of Focal Length of A Converging Lens and Mirror
Physics 41 Determination of Focal Length of A Converging Lens and Mirror Objective: Apply the thin-lens equation and the mirror equation to determine the focal length of a converging (biconvex) lens and
More informationPrac%ce Quiz 7. These are Q s from old quizzes. I do not guarantee that the Q s on this year s quiz will be the same, or even similar.
Prac%ce Quiz 7 These are Q s from old quizzes. I do not guarantee that the Q s on this year s quiz will be the same, or even similar. D B cameras zoom lens covers the focal length range from 38mm to 110
More informationOptics: Lenses & Mirrors
Warm-Up 1. A light ray is passing through water (n=1.33) towards the boundary with a transparent solid at an angle of 56.4. The light refracts into the solid at an angle of refraction of 42.1. Determine
More informationPhy 212: General Physics II
Phy 212: General Physics II Chapter 34: Images Lecture Notes Geometrical (Ray) Optics Geometrical Optics is an approximate treatment o light waves as straight lines (rays) or the description o image ormation
More informationLenses. Images. Difference between Real and Virtual Images
Linear Magnification (m) This is the factor by which the size of the object has been magnified by the lens in a direction which is perpendicular to the axis of the lens. Linear magnification can be calculated
More informationTest Review # 8. Physics R: Form TR8.17A. Primary colors of light
Physics R: Form TR8.17A TEST 8 REVIEW Name Date Period Test Review # 8 Light and Color. Color comes from light, an electromagnetic wave that travels in straight lines in all directions from a light source
More information19. Ray Optics. S. G. Rajeev. April 2, 2009
9. Ray Optics S. G. Rajeev April 2, 2009 When the wave length is small light travels along straightlines called rays. Ray optics (also called geometrical optics) is the study of this light in this situation.
More informationPhysics 2310 Lab #6: Multiple Thin Lenses Dr. Michael Pierce (Univ. of Wyoming)
Physics 2310 Lab #6: Multiple Thin Lenses Dr. Michael Pierce (Univ. of Wyoming) Purpose: The purpose of this lab is to investigate the properties of multiple thin lenses. The primary goals are to understand
More informationChapter 25 Optical Instruments
Chapter 25 Optical Instruments Units of Chapter 25 Cameras, Film, and Digital The Human Eye; Corrective Lenses Magnifying Glass Telescopes Compound Microscope Aberrations of Lenses and Mirrors Limits of
More informationPart 1 Investigating Snell s Law
Geometric Optics with Lenses PURPOSE: To observe the refraction of light off through lenses; to investigate the relationship between objects and images; to study the relationship between object distance,
More informationChapter 23. Mirrors and Lenses
Chapter 23 Mirrors and Lenses Notation for Mirrors and Lenses The object distance is the distance from the object to the mirror or lens Denoted by p The image distance is the distance from the image to
More informationCHAPTER 34. Optical Images
CHAPTER 34 1* Can a virtual image be photographed? Yes. Note that a virtual image is seen because the eye focuses the diverging rays to form a real image on the retina. Similarly, the camera lens can focus
More informationNORTHERN ILLINOIS UNIVERSITY PHYSICS DEPARTMENT. Physics 211 E&M and Quantum Physics Spring Lab #8: Thin Lenses
NORTHERN ILLINOIS UNIVERSITY PHYSICS DEPARTMENT Physics 211 E&M and Quantum Physics Spring 2018 Lab #8: Thin Lenses Lab Writeup Due: Mon/Wed/Thu/Fri, April 2/4/5/6, 2018 Background In the previous lab
More information7 = <» _1_. The Language of Physics. Summary of Important Equations. J_ Pi. \j?i rj
The Language of Physics Refraction The bending of light as it travels from one medium into another. It occurs because of the difference in the speed of light in the different mediums. Whenever a ray of
More informationChapter 26. The Refraction of Light: Lenses and Optical Instruments
Chapter 26 The Refraction of Light: Lenses and Optical Instruments 26.1 The Index of Refraction Light travels through a vacuum at a speed c=3. 00 10 8 m/ s Light travels through materials at a speed less
More informationCh 24. Geometric Optics
text concept Ch 24. Geometric Optics Fig. 24 3 A point source of light P and its image P, in a plane mirror. Angle of incidence =angle of reflection. text. Fig. 24 4 The blue dashed line through object
More informationChapter 23. Mirrors and Lenses
Chapter 23 Mirrors and Lenses Notation for Mirrors and Lenses The object distance is the distance from the object to the mirror or lens Denoted by p The image distance is the distance from the image to
More informationName. Light Chapter Summary Cont d. Refraction
Page 1 of 17 Physics Week 12(Sem. 2) Name Light Chapter Summary Cont d with a smaller index of refraction to a material with a larger index of refraction, the light refracts towards the normal line. Also,
More information