# Laboratory PRELABO. c. A double convex lens has a negative focal length. d. The focal length of a lens is always positive.

Save this PDF as:

Size: px
Start display at page:

Download "Laboratory PRELABO. c. A double convex lens has a negative focal length. d. The focal length of a lens is always positive."

## Transcription

1 Name Section Date Laboratory PRELABO %ad carehlly the entire description of e laboratory and answer the folllowiaag questions based on the material contained in the reading assignment. Turn in the completed prelaboratory assignment at the beginning of the laboratory period prior to the performance of the laboratory. 1. Mark the following statements about lenses as true or false. a. Incident parallel light rays converge if the lens focal length is negative. b. If the path of converging light rays are traced backwards, they appear to have come from a point called the "focal point." c. A double convex lens has a negative focal length. d. The focal length of a lens is always positive. 2. A double convex lens is made from glass whose index of refraction is n = The magnitudes of its radii of curvature R1 and R2 are 10.0 cm and 15.0 cm, respectively. What is the focal length of the lens? Show your work. 3. What is a real image? What is a virtu 4. For a diverging lens, state what s of images can be formed and the conditions under which those images can be formed. 5. For a converging lens, state what and the conditions under which those images c

2 6. A lens has a focal length off = em. If an object is place lens, where is the image formed? Is the image real or virtual? Show yow work. object is 16.0 cm from a lens. A red at is the focal length of the lens? Sh age is formed 24.0 em from 8. One lens has a focal length of ern. A second lens of focal length em is placed in contact with the first lens. What is the equivalent focal length of the combination of lenses? Show your work. 9. Two lenses are in contact. One of the lenses has a focal length of cm when used alone. When the two are in combination, an object 20.0 cm away from the lenses forms a real image 40.0 cm away from t at is the focal length of the second lens? Show your work.

3 When a ray of light is incident upon the interface between two media in which the speed of li ent, the ray changes direction as it passes fkom one medium into the other. The process is called "refraction," and the different media are characterized by a constant called the "index of refraction." Lenses are devices that can cause parallel rays of light to converge or diverge by appropriate shaping of the interface between media of differing index of refraction. This laboratory will use an optical bench and several lenses either done or in combination to accomplish the following objectives: L Demonstration that converging lenses form real images and diverging lenses form virtual images 2. Measurement of the focal length of converging lenses by forming a real image of a very distant object 3, Determination of the equivalent focal length of two lenses in contad in terms of their individual focal lengths 4. Measurement of the focal length of a diverging lens by using it in combination with a converging lens to form a real image L Optical bench with holders for lenses, a screen, and an object 2. Lamp with object painted on its face to serve as an illuminated object 3. Three lenses (focal lengths approximately +20, -1-10, and -30 can) 4. Meter stick, screen on which to form image, masking tape THEORY When a beam of light rays parallel to the central axis of a lens is incident upon a converging lens, the rays are brought together at a point called the "focal point" of the lens. The distance from the center of the lens to the focal point is called the "focal length" of the lens, an it is a positive quanti for a converging lens. When a parallel b m of light rays is in ent upon a diverging lens the rays diverge as they leave the lens; however, if the path of the outgoing rays are traced backward, they appear to have emerged from a point called the "focal point" of the lens. The distance from the center of the lens to the focal point is called the "fiscal length" of the lens, and it is a negative quatity for a diverging lens.

4 Figure 4 i. i Ray diagram for converging and diverging showing the definition of the focal length for both she converging and diverging case. In Figure 41.1, two common types of lenses are pictured. The first, shown in past (a), is a double convex lens whose fomal length is positive, and thus it brings the incident parallel rays to a focus. The seco type of lens, shown in part ( concave lens whose focal length is ne ve, and thus it causes the in rays to diverge. They ap ear to come from a fie point as shown. In general, a lens is converging or diverging depending on the curvature of its surfaces. In Figure 41.1 the radii of curvature of the surfaces of the two lenses are denoted as R1 and R2. The general relationship that determines the focal length fin terms of the radii of curvature and the index of refraction n of the glass from which the lens is made is called the "liens makers' equation." It is given by For the converging lens shown in Figure 4P.l(a), the radius R1 is positive and the radius R2 is negative, but for the diverging lens of part (b), the radius R1 is negative and the radius R2 is positive. The signs of t according to a sign convention that is described in most element As an example, consider a double convex lens like the one shown in Figure 41.1(a) made from glass of index of refraction 1.60 curvature R1 and R2 of magnitude 20.0 and 38.0 cm, respectively. Acco sign convention given above, that would mean R1 = -i cm and R2 = tting those values into equation l gives a value for the focal length f of +2 Essentially, equation 1 states that a leas that is thicker in the middle than at the edges is converging, and a lens that is thi er in the middle thaw at the edges is diverging. Therefore, a lens can be classifi as converging or divergin taking it between one's fingers to see if th as is thicker at its cente edge. Lenses are used to form images of object sssible kinds of images. The first type, called a "real image," is one sed on a screen. For a red image, light actually passes though the the image is formed. The type of image is called a "virtual i y pass through the points at which the i not be focused on a screen. verging lenses can form ei Laboratory 4 1

5 formed by a converging lens is real or virtual epends on how far the object is from the lens compared to the focal len of the lens. If an object is hrther from a converging lens than its focal length eal image is formed. However; if the object is closer to a converging lens than the focal length, the image formed is virtual. Mote that whenever a virtual im 1 serve as the object for some other lens system to ultima ORen the other lens system is the human eye, and the r e retina of the eye. In the process of image the lens is called the "object distance," or p, lens is called the "image distance," or q. The relationship betw tance a, and &he focal length of Note that equation 2 is valid both for converging (positive f) and for diverging (negative f) lenses. Normally, the object distance is considered positive. In that case, a positive value for the image distance means that the image is on the opposite side of the lens from the object, and the image is real. A negative value for the image distance means that the image is on the same side of the lens as the object, and the image is virtual. When a lens is used to form an image of a very stant object, the image distance p is very large. For that case, the term Llp in equation 2 is very small and is thus negligible compared to the other terms l/q and l/f in that equation. Therefore, for the case of a very distant object equation 2 becomes For this case, the image distance is equal to the focal length. This provides a quick and accurate way to determine the focal length of a converging lens. The method is only applicable to a converging lens because the image must be focused on a screen. Since a diverging lens cannot form a real image, this technique will not work directly for a diverging lens. If two lenses with focal lengths of fi and fi are place in contact, the combination of the two act as a single lens of effective focal length IC,. The effective focal length of the two lenses in contact f. is related to the individual focal lengths of the lenses fi Equation 4 holds for any combination of converging and diverging lenses. If the individual lenses fi and f2 are converging, then the effective focal length fe will, of course, also be converging. If one of enses is conver ng and the other is diverging, then the effective focal lengkb e either conver ng or diverging depending on the values of fi and f2. If the converging lens ler magnitude than the diverging lens, then the effective focal l e converging. This fact can be used to determine the focal length of an erging lens if it is used in combination with a conve ose focal length is short enough to produce a converging combination. Laboratory

6 L Place one of the three lenses in a Iens ho erlich and place the screen in its holder on the optical bench ( ee the optical bench in front of a window in the. Adjust the distance n until a sharp real image of for only two of the ditions of equatio length sf the lens. Record focal length of the two len longest focal len which no image 2. Place Iens B in the lens holder on the optical bench and object painted on its face as an object. For varion the Hens, move the screen until a sha each value of'p measure the image distance q fr sure that the lens, the object, and the scree holders. Try values for p of 20, each case, If these values ofp do four values that iffer by at least 5 cm. e 2. ement satisfies the con- the lens. Make Figure Optical bench with object, lens, an screen on which a real image is formed. 1. Using equation 2, calculate the values of ngth f for each of the four pairs of object and image in Calculations Table Compute the mean f and t ard enor af for the four values for the focal length f and record them in Calculations Table 2. e mean f represents t e n~easurement of the focal le of lens B using finite ect distances. Compute the perce determined using essentially infinite percentage difference between t e two measurements in Calculations Table 2. Laboratory 4 1

7 L Place lens A an in contact, using mas ng tape to hold the edges of the length of the combin fm both by the finite object method the finite object method, use just one v ermine the image dis- Lame q. Record t 2. Place lens B and lens C in contact, using masking tape to hol two lenses parallel. Repeat the measurements des in step 1 above for these lenses in combination. Record the results in Data 3. I. From the data for lenses A and in Data Table 3 calculate the value off' from the value of p an q using equation 2. eeord that value of fm in. Calculations Table Record the value of fab determined y the very distant object method in Calculations Table Calculate the average fabfab of the two values for fab etermined in steps 1 and 2. This average value fz will be consi ered to be the experimental value for the combination of these two lenses. 4, Using equation 4, calculate a theoretical value expected for the combination sf lenses A and B. Use the values by the distant object method for the values of fa and this value as (/fabitheo in Calculations Table 3. rence between the experimental value and the thet in Calculations Table 3. from at value of fbg in Calculations 6. From the data for lenses and G in Data Table 3 calculate the value of ha= the values ofp and q using equation 2. Table Record the value of fbc deter ined by the very distant object method in Calcula- 8, Calculate the average fg of e two values for fbc determined in steps 6 and 7. This average value fgwill be considered to be the experimental value for the combination of these two lenses. 9. Using the value of & determine 8 and the value of fb from Data Table 1 for the focal length e value of fc7 the focal length of using equation 4. Record Calculations Table 3. Laboratory

8

9 Name - Section - 1 ens [ age Distance I Focal Length I % difference SAMPLE C Laboratory 4 1

10 SAMPLE CALCULATIONS Calculations

11 EST1 k Why is it not possible to fo a real image with lens C alone? 2. Take lens C between your th b and index finger. Is it thinner at the center of the lens or thicker? Take len between your thumb and index finger. Is it thinner at the cen r of the lens or thicker? From this information alone, what can you conclude ut lenses C and B? 3. Consider the percentage difference between the two measurements of the focal length of lens B. Express 9 as a percentage off;. Is the percentage difference between the two measurements less than the percentage standard error?

12 4. Compare the agreement between the exp ental and theoretical values offrn the focal length of lenses A and B combin s data suggest that equation 4 is a valid model for the equivalent focal length of two lenses in contact? 5. If lens A and lens C were used in cantact, could they produce a real image? State dearly the basis for your answer. Laboratory 4 1

### EXPERIMENT 6 OPTICS: FOCAL LENGTH OF A LENS

EXPERIMENT 6 OPTICS: FOCAL LENGTH OF A LENS The following website should be accessed before coming to class. Text reference: pp189-196 Optics Bench a) For convenience of discussion we assume that the light

### Convex Mirrors. Ray Diagram for Convex Mirror

Convex Mirrors Center of curvature and focal point both located behind mirror The image for a convex mirror is always virtual and upright compared to the object A convex mirror will reflect a set of parallel

### GEOMETRICAL OPTICS. Lens Prism Mirror

GEOMETRICAL OPTICS Geometrical optics is the treatment of the passage of light through lenses, prisms, etc. by representing the light as rays. A light ray from a source goes in a straight line through

### Geometric Optics Converging Lenses and Mirrors Physics Lab IV

Objective Geometric Optics Converging Lenses and Mirrors Physics Lab IV In this set of lab exercises, the basic properties geometric optics concerning converging lenses and mirrors will be explored. The

### Spherical Mirror and Lens W.S.

Spherical Mirror and Lens W.S. Refer to the following information for the next question: The radius of curvature of any spherical mirror is R. The distance VC = R is the mirror's radius along its principal

### April 29. Physics 272. Spring Prof. Philip von Doetinchem

Physics 272 April 29 Spring 2014 http://www.phys.hawaii.edu/~philipvd/pvd_14_spring_272_uhm.html Prof. Philip von Doetinchem philipvd@hawaii.edu Phys272 - Spring 14 - von Doetinchem - 411 Summary Object

### C) D) As object AB is moved from its present position toward the left, the size of the image produced A) decreases B) increases C) remains the same

1. For a plane mirror, compared to the object distance, the image distance is always A) less B) greater C) the same 2. Which graph best represents the relationship between image distance (di) and object

### Physics Laboratory: Lenses

Physics Laboratory: Lenses We have already seen how Snell s Law describes the refraction of light as it passes through media with different indices of refraction. Lenses are made of materials that generally

### Physics 9 th Standard Chapter 10 LENS Fill in the blanks 1. A transparent material which is thicker in the middle and thinner at the edges is called

Physics 9 th Standard Chapter 10 LENS Fill in the blanks 1. A transparent material which is thicker in the middle and thinner at the edges is called convex lens 2. An object should be placed at twice the

### A STUDY OF LENSES INTRODUCTION. LAB LIGH.1 From Laboratory Manual of Elementary Physics, Westminster College

A STUDY OF LENSES LAB LIGH.1 From Laboratory Manual of Elementary Physics, Westminster College INTRODUCTION A lens is a piece of transparent material bounded by two curved surfaces or a curved surface

### SPH3UW Unit 7.8 Multiple Lens Page 1 of 5

SPH3UW Unit 7.8 Multiple Lens Page of 5 Notes Physics Tool box Thin Lens is an optical system with two refracting surfaces. The most simplest thin lens contain two spherical surfaces that are close enough

### RAY OPTICS II 7.1 INTRODUCTION

7 RAY OPTICS II 7.1 INTRODUCTION This chapter presents a discussion of more complicated issues in ray optics that builds on and extends the ideas presented in the last chapter (which you must read first!)

### PHYSICS 262 GEOMETRIC OPTICS

PHYSICS 262 GEOMETRIC OPTICS Part I Position and Size of Image: Cardinal Points If the indices of refraction of all elements are known, together with the positions and radii of curvature of all surfaces,

### Lab #1: Geometric Optics

Physics 123 Union College Lab #1: Geometric Optics I. Introduction In geometric optics, the ray approximation is combined with the laws of reflection and refraction and geometry to determine the location

### Chapter 13- Optics Light, Reflection, & Mirrors Facts about Light:

Name: Physics 11 Date: Chapter 13- Optics 13.1- Light, Reflection, & Mirrors Facts about Light: It is a form of Electromagnetic Energy It is a part of the Electromagnetic Spectrum and the only part we

### Determination of Focal Length of A Converging Lens and Mirror

Physics 41- Lab 5 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)

### Name: 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

### Ozobot Bit Classroom Application: Demonstration of the Optics of Thin Convex and Concave Lenses

OZO AP P EAM TR T S BO RO VE D Ozobot Bit Classroom Application: Demonstration of the Optics of Thin Convex and Concave Lenses Created by Richard Born Associate Professor Emeritus Northern Illinois University

### Chapter 36 - Lenses. A PowerPoint Presentation by Paul E. Tippens, Professor of Physics Southern Polytechnic State University

Chapter 36 - Lenses A PowerPoint Presentation by Paul E. Tippens, Professor of Physics Southern Polytechnic State University 2007 Objectives: After completing this module, you should be able to: Determine

### 9/16 Optics 1 /11 GEOMETRIC OPTICS

9/6 Optics / GEOMETRIC OPTICS PURPOSE: To review the basics of geometric optics and to observe the function of some simple and compound optical devices. APPARATUS: Optical bench, lenses, mirror, target

### Procedure: Geometrical Optics. Theory Refer to your Lab Manual, pages 291 294. Equipment Needed

Theory Refer to your Lab Manual, pages 291 294. Geometrical Optics Equipment Needed Light Source Ray Table and Base Three-surface Mirror Convex Lens Ruler Optics Bench Cylindrical Lens Concave Lens Rhombus

### 17.1 Reflection and Refraction

17.1 Reflection and Refraction How do we describe the reflection and refraction of light? Reflection and Refraction Investigation 17.1 We observe the law of reflection every day. Looking in a mirror, we

### Lecture PowerPoints. Chapter 23 Physics: Principles with Applications, 7 th edition Giancoli

Lecture PowerPoints Chapter 23 Physics: Principles with Applications, 7 th edition Giancoli This work is protected by United States copyright laws and is provided solely for the use of instructors in teaching

### Lecture PowerPoints. Chapter 23 Physics: Principles with Applications, 7th edition Giancoli

Lecture PowerPoints Chapter 23 Physics: Principles with Applications, 7th edition Giancoli This work is protected by United States copyright laws and is provided solely for the use of instructors in teaching

### General Science 1110L Lab Lab 7: CONVEX LENS

General Science 1110L Lab Lab 7: CONVEX LENS OBJECTIVE: To investigate the image formed by a certain thin convex lens and to determine its focal length. APPARATUS: Convex lens, optical bench, light source,

### The Thin Convex Lens convex lens focal point thin lens thin convex lens real images

1 The Thin Convex Lens In the previous experiment, we observed the phenomenon of refraction for a rectangular piece of glass. The bending or refraction of the light was observed for two parallel interfaces,

### Chapter 17: Light and Image Formation

Chapter 17: Light and Image Formation 1. When light enters a medium with a higher index of refraction it is A. absorbed. B. bent away from the normal. C. bent towards from the normal. D. continues in the

### Home Work 14. Sol 17. (a) The mirror is concave. (b) f = +20 cm (positive, because the mirror is concave). (c) r = 2f = 2(+20 cm) = +40 cm.

Home Work 14 14-1 More mirrors. Object O stands on the central axis of a spherical or plane mirror. For this situation, each problem in the Table refers to (a) the type of mirror, (b) the focal distance

### Thin Lenses Drawing Ray Diagrams

Drawing Ray Diagrams Fig. 1a Fig. 1b In this activity we explore how light refracts as it passes through a thin lens. Eyeglasses have been in use since the 13 th century. In 1610 Galileo used two lenses

### Final Exam information

Final Exam information Wednesday, June 6, 2012, 9:30 am - 11:18 am Location: in recitation room Comprehensive (covers all course material) 35 multiple-choice questions --> 175 points Closed book and notes

### Objectives 426 CHAPTER 10 LIGHT AND OPTICAL SYSTEMS

Objectives Explain what is meant by the curvature and focal length of mirrors and lenses. Explain how curvature and focal length are related. Use light rays to trace light from an object to a mirror to

### Chapter 17 Light and Image Formation

Chapter 7 Light and Image Formation Reflection and Refraction How is an image in a mirror produced? Reflection and Image Formation In chapter 6 we studied physical optics, which involve wave aspects of

### 2) A convex lens is known as a diverging lens and a concave lens is known as a converging lens. Answer: FALSE Diff: 1 Var: 1 Page Ref: Sec.

Physics for Scientists and Engineers, 4e (Giancoli) Chapter 33 Lenses and Optical Instruments 33.1 Conceptual Questions 1) State how to draw the three rays for finding the image position due to a thin

### 1. Reflection, Refraction, and Geometric Optics (Chapters 33 and 34) [ Edit ]

1 of 17 2/8/2016 9:34 PM Signed in as Weida Wu, Instructor Help Sign Out My Courses Course Settings University Physics with Modern Physics, 14e Young/Freedman Instructor Resources etext Study Area ( RUPHY228S16

### waves rays Consider rays of light from an object being reflected by a plane mirror (the rays are diverging): mirror object

PHYS1000 Optics 1 Optics Light and its interaction with lenses and mirrors. We assume that we can ignore the wave properties of light. waves rays We represent the light as rays, and ignore diffraction.

### Turnbull High School Physics Department. CfE. National 4 /National. Physics. Unit 1: Waves and Radiation. Section 3: Light

Turnbull High School Physics Department CfE National 4 /National 5 Physics Unit 1: Waves and Radiation Section 3: Light Name: Class: 1 National 5 Unit 1: Section 3 I can state the law of reflection and

### Understanding Spherical Mirrors

[ Assignment View ] [ Eðlisfræði 2, vor 2007 34. Geometric Optics and Optical Instruments Assignment is due at 2:00am on Wednesday, January 17, 2007 Credit for problems submitted late will decrease to

### Page 1 Class 10 th Physics LIGHT REFLECTION AND REFRACTION

Page 1 LIGHT Light is a form of energy, which induces the sensation of vision in our eyes and makes us able to see various things present in our surrounding. UNITS OF LIGHT Any object which has an ability

### O5: Lenses and the refractor telescope

O5. 1 O5: Lenses and the refractor telescope Introduction In this experiment, you will study converging lenses and the lens equation. You will make several measurements of the focal length of lenses and

### Thin Lenses. Physics 102 Workshop #7. General Instructions

Thin Lenses Physics 102 Workshop #7 Name: Lab Partner(s): Instructor: Time of Workshop: General Instructions Workshop exercises are to be carried out in groups of three. One report per group is due by

### PROPERTIES OF THIN LENSES. Paraxial-ray Equations

PROPERTIES OF THIN LENSES Object: To measure the focal length of lenses, to verify the thin lens equation and to observe the more common aberrations associated with lenses. Apparatus: PASCO Basic Optical

### Homework 13 chapter 36: 17, 21, 33, 74

http://iml.umkc.edu/physics/wrobel/phy50/homework.htm Homework chapter 6: 7,,, 74 Problem 6.7 A spherical mirror is to be used to form, on a screen located 5 m from the object, an image five times the

### The diagram below shows the image formed on the film when Moana takes a picture.

WAVES: LENSES QUESTIONS LENSES AND REFRACTION (2015;2) Tom uses a convex lens as a magnifying glass. He puts a petal of a flower 2.0 cm in front of the lens to study it. The lens has a focal length of

### Geometric Optics. Chapter 34. Goals for Chapter 34. Reflection at a plane surface. Introduction How do magnifying lenses work?

Goals for Chapter 34 Chapter 34 To see how plane and curved mirrors form images To learn how lenses form images Geometric Optics To understand how a camera works To analyze defects in vision and how to

### Question 2: The radius of curvature of a spherical mirror is 20 cm. What is its focal length?

Question 1: Define the principal focus of a concave mirror. ANS: Light rays that are parallel to the principal axis of a concave mirror converge at a specific point on its principal axis after reflecting

### (text on screen) VO In diffuse reflection, parallel incident light rays are reflected in different directions.

Physics 1401 Mirrors You ve probably heard the old saying, The end is in sight. Well, that saying applies doubly to our class. Not only do we start the final unit that ends our year of physics but today

### Chapter 23. Ray Optics. Chapter 23. Ray Optics. What is specular reflection? Chapter 23. Reading Quizzes

Chapter 23. Ray Optics Chapter 23. Ray Optics Our everyday experience that light travels in straight lines is the basis of the ray model of light. Ray optics apply to a variety of situations, including

### Experiment 3 Lenses and Images

Experiment 3 Lenses and Images Who shall teach thee, unless it be thine own eyes? Euripides (480?-406? BC) OBJECTIVES To examine the nature and location of images formed by es. THEORY Lenses are frequently

### AP Physics B Ch. 23 and Ch. 24 Geometric Optics and Wave Nature of Light

AP Physics B Ch. 23 and Ch. 24 Geometric Optics and Wave Nature of Light Name: Period: Date: MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers the question. 1) Reflection,

### Ray Optics 11/96. Physical Science 101 Name Section. Partner s Name

Physical Science 101 Name Section Partner s Name Purpose: The purpose of this lab is to study the laws of reflection and refraction for flat surfaces and to find out how converging lenses and converging

### Curved surfaces and lenses

Curved surfaces and lenses (Material taken from: Optics, by E. Hecht, 4th Ed., Ch: 5) One of the important challenges pertaining to the practical aspects of optics is wave shaping, i.e. controlling the

### Specular Reflection" !i =!r" Physics 202 Spring 2010 Lecture 25. Two types of reflection. Reflection from a mirror

Physics 202 Spring 2010 Lecture 25 Today s topics: reflection and mirrors refraction and lenses Two types of reflection Specular reflection: reflection off a smooth surface Diffuse reflection: reflection

### It bends away from the normal, like this. So the angle of refraction, r is greater than the angle of incidence, i.

Physics 1403 Lenses It s party time, boys and girls, because today we wrap up our study of physics. We ll get this party started in a bit, but first, you have some more to learn about refracted light.

### HOMEWORK 4 with Solutions

Winter 996 HOMEWORK 4 with Solutions. ind the image of the object for the single concave mirror system shown in ig. (see next pages for worksheets) by: (a) measuring the radius R and calculating the focal

### LIGHT REFLECTION AND REFRACTION

QUESTION BANK IN SCIENCE CLASS-X (TERM-II) 10 LIGHT REFLECTION AND REFRACTION CONCEPTS To revise the laws of reflection at plane surface and the characteristics of image formed as well as the uses of reflection

### 1 of 9 2/9/2010 3:38 PM

1 of 9 2/9/2010 3:38 PM Chapter 23 Homework Due: 8:00am on Monday, February 8, 2010 Note: To understand how points are awarded, read your instructor's Grading Policy. [Return to Standard Assignment View]

### Geometric Optics Physics 118/198/212. Geometric Optics

Background Geometric Optics This experiment deals with image formation with lenses. We will use what are referred to as thin lenses. Thin lenses are ordinary lenses like eyeglasses and magnifiers, but

### How can I predict how big my reflection will appear in a mirror? Think about it and we might try your solution.

How can I predict how big my reflection will appear in a mirror? Think about it and we might try your solution. Introduction to Optics Lecture 12 (See Giancoli Chapter 23) Refraction Phenomena Silas Laycock,

### Lesson 29: Lenses. Double Concave. Double Convex. Planoconcave. Planoconvex. Convex meniscus. Concave meniscus

Lesson 29: Lenses Remembering the basics of mirrors puts you half ways towards fully understanding lenses as well. The same sort of rules apply, just with a few modifications. Keep in mind that for an

### Rutgers Analytical Physics 750:228, Spring 2016 ( RUPHY228S16 )

1 of 13 2/17/2016 5:28 PM Signed in as Weida Wu, Instructor Help Sign Out Rutgers Analytical Physics 750:228, Spring 2016 ( RUPHY228S16 ) My Courses Course Settings University Physics with Modern Physics,

### Physics I Honors: Chapter 14 Practice Test - Refraction of Light

Physics I Honors: Chapter 14 Practice Test - Refraction of Light Multiple Choice Identify the letter of the choice that best completes the statement or answers the question. 1. Refraction is the bending

### Basic Optics System OS-8515C

40 50 30 60 20 70 10 80 0 90 80 10 20 70 T 30 60 40 50 50 40 60 30 C 70 20 80 10 90 90 0 80 10 70 20 60 50 40 30 Instruction Manual with Experiment Guide and Teachers Notes 012-09900B Basic Optics System

### 7/06 Geometric Optics GEOMETRIC OPTICS JUPITER THROUGH A REPLICA OF GALILEO'S TELESCOPE

GEOMETRIC OPTICS JUPITER THROUGH A REPLICA OF GALILEO'S TELESCOPE The four Galilean moons of Jupiter (from left: Europa, Callisto, Io and Ganymede): a 6 sec exposure taken on Nov. 28, 2002 at approximately

### 1. You stand two feet away from a plane mirror. How far is it from you to your image? a. 2.0 ft c. 4.0 ft b. 3.0 ft d. 5.0 ft

Lenses and Mirrors 1. You stand two feet away from a plane mirror. How far is it from you to your image? a. 2.0 ft c. 4.0 ft b. 3.0 ft d. 5.0 ft 2. Which of the following best describes the image from

### Solution Derivations for Capa #13

Solution Derivations for Capa #13 1) A super nova releases 1.3 10 45 J of energy. It is 1540 ly from earth. If you were facing the star in question, and your face was a circle 7 cm in radius, how much

### Ray Tracing: the Law of Reflection, and Snell s Law

Ray Tracing: the Law of Reflection, and Snell s Law Each of the experiments is designed to test or investigate the basic ideas of reflection and the ray-like behavior of light. The instructor will explain

### Lens Equation Purpose

Lens Equation Purpose To verify the lens equation for both a converging lens and a diverging lens. To investigate optical systems. To find the focal lengths of a converging lens and a diverging lens. Background

### Chapter 23. The Refraction of Light: Lenses and Optical Instruments

Chapter 23 The Refraction of Light: Lenses and Optical Instruments Lenses Converging and diverging lenses. Lenses refract light in such a way that an image of the light source is formed. With a converging

### Light Reflection. Discussion:

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

### REFLECTION & 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

### not to be republished NCERT PRINCIPLE EXPERIMENT AIM APPARATUS AND MATERIAL REQUIRED LABORATORY MANUAL

EXPERIMENT 11 86 AIM To find the focal length of a convex mirror using a convex lens. APPARATUS AND MATERIAL REQUIRED PRINCIPLE Fig. E 11.1(a) Object is at infinity. A highly diminished and point image

### Physics 6C. Cameras and the Human Eye

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). (Picture

### Unit 3 Lesson 3 Mirrors and Lenses How do mirrors and lenses work?

Big Idea: Visible light is the small part of the electromagnetic spectrum that is essential for human vision Unit 3 Lesson 3 Mirrors and Lenses How do mirrors and lenses work? Copyright Houghton Mifflin

### Lenses. Types of Lenses (The word lens is derived from the Latin word lenticula, which means lentil. A lens is in the shape of a lentil.

Lenses Notes_10_ SNC2DE_09-10 Types of Lenses (The word lens is derived from the Latin word lenticula, which means lentil. A lens is in the shape of a lentil. ) Most lenses are made of transparent glass

### Lecture 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

### Amplitude Y is the maximum value of the wave variable ( displacement in this case ).

NATURE OF VISIBLE LIGHT: Our current knowledge is that light exhibits a dual nature or behavior. It behaves as electromagnetic ( EM for short ) waves or as a particles ( photons ). General description

### Physics 1653 Final Exam - Review Questions

Chapter 22 Reflection & Refraction Physics 1653 Final Exam - Review Questions 1. The photon energy for light of wavelength 500 nm is approximately A) 1.77 ev B) 3.10 ev C) 6.20 ev D) 2.48 ev E) 5.46 ev

### Class 10 Reflection and refraction of Light

Class 10 Reflection and refraction of Light Light is the form of energy having both wave and particle nature. Speed of light in vacuum is 3 lakhs km/s Reflection of Light by plane and Spherical Mirrors

### MIRRORS AND REFLECTION

MIRRORS AND REFLECTION PART 1 ANGLE OF INCIDENCE, ANGLE OF REFLECTION In this exploration we will compare θ i (angle of incidence) and θ r (angle of reflection). We will also investigate if rays are reversed

### The Law of Reflection

The Law of Reflection In the diagram, the ray of light approaching the mirror is known as the incident ray (labeled I in the diagram). The ray of light which leaves the mirror is known as the reflected

### Light, Reflection and Mirrors. Light Reflection

Name: a. 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

### Geometrical Optics - Grade 11

OpenStax-CNX module: m32832 1 Geometrical Optics - Grade 11 Rory Adams Free High School Science Texts Project Mark Horner Heather Williams This work is produced by OpenStax-CNX and licensed under the Creative

### PRACTICAL APPLICATIONS

PRACTICAL APPLICATIONS OF OPTICAL LENSES: TELESCOPES & PROJECTORS By Diane Kasparie & Mary Young PRACTICAL APPLICATION OF OPTICAL LENSES: TELESCOPES & PROJECTORS Light & Sound workshop SUMMER INSTITUTE:

### Chapter 27 Optical Instruments. 27.1 The Human Eye and the Camera 27.2 Lenses in Combination and Corrective Optics 27.3 The Magnifying Glass

Chapter 27 Optical Instruments 27.1 The Human Eye and the Camera 27.2 Lenses in Combination and Corrective Optics 27.3 The Magnifying Glass Figure 27 1 Basic elements of the human eye! Light enters the

### Chapter 32. OPTICAL IMAGES 32.1 Mirrors

Chapter 32 OPTICAL IMAGES 32.1 Mirror The point P i called the image or the virtual image of P (light doe not emanate from it) The left-right reveral in the mirror i alo called the depth inverion (the

### Solution Derivations for Capa #14

Solution Derivations for Capa #4 ) An image of the moon is focused onto a screen using a converging lens of focal length (f = 34.8 cm). The diameter of the moon is 3.48 0 6 m, and its mean distance from

### Exercise Torque on a Dipole in a Uniform Field. Correct. Correct. Correct. Heimadæmi 2. Part A. Part B. Part C

Heimadæmi 2 Due: 11:00pm on Thursday, January 28, 2016 You will receive no credit for items you complete after the assignment is due. Grading Policy Exercise 21.56 The dipole moment of the water molecule

### Chapter 3: Mirrors and Lenses

Chapter 3: Mirrors and Lenses The Lens Equation Calculating image location Calculating magnification Special Lenses Ball lens retroreflector Fresnel lens Multiple Lenses Ray tracing Lens equation Aberrations

### Refraction and Lenses. Snell s Law Total internal reflection Dispersion Absorption Scattering

Refraction and Lenses Snell s Law Total internal reflection Dispersion Absorption Scattering Refraction Two things happen when a light ray is incident on a smooth boundary between two transparent materials:

### Law of Reflection. The angle of incidence (i) is equal to the angle of reflection (r)

Light GCSE Physics Reflection Law of Reflection The angle of incidence (i) is equal to the angle of reflection (r) Note: Both angles are measured with respect to the normal. This is a construction line

### Outline The Refraction of Light Forming Images with a Plane Mirror 26-3 Spherical Mirror 26-4 Ray Tracing and the Mirror Equation

Chapter 26 Geometrical Optics Outline 26-1 The Reflection of Light 26-2 Forming Images with a Plane Mirror 26-3 Spherical Mirror 26-4 Ray Tracing an the Mirror Equation 26-5 The Refraction of Light 26-6

### Which type of electromagnetic radiation would be used to take the photograph? ... (1)

Q. After a person is injured a doctor will sometimes ask for a photograph to be taken of the patient s bone structure, e.g. in the case of a suspected broken arm. (i) Which type of electromagnetic radiation

### Experiment 8. Thin Lenses. Measure the focal length of a converging lens. Investigate the relationship between power and focal length.

Experiment 8 Thin Lenses 8.1 Objectives Measure the focal length of a converging lens. Measure the focal length of a diverging lens. Investigate the relationship between power and focal length. 8.2 Introduction

### Lecture 14 Images Chapter 34

Lecture 4 Images Chapter 34 Preliminary topics before mirrors and lenses Law of Reflection Dispersion Snell s Law Brewsters Angle Law of Reflection Dispersion Snell s Law Brewsters Angle Geometrical Optics:Study

### Optics Laws of lenses and optical instruments. Geometrical Optics. What you need:

Optics Geometrical Optics..0 Laws of lenses and optical instruments What you can learn about Law of lens es Mag nifi ca tion Focal length Object dis tance Tele scope Micro scope Path of a ray Con vex lens

### 19 - RAY OPTICS Page 1 ( Answers at the end of all questions )

19 - RAY OPTICS Page 1 1 ) A ish looking up through the water sees the outside world contained in a circular horizon. I the reractive index o water is 4 / 3 and the ish is 1 cm below the surace, the radius

### Lab 9. Optics. 9.1 Introduction

Lab 9 Name: Optics 9.1 Introduction Unlike other scientists, astronomers are far away from the objects they want to examine. Therefore astronomers learn everything about an object by studying the light