Lens Physics

A very common camera is the Single Lens Reflex or the SLR. The incident ray and refracted ray make small angles with the principle axis of the. Move the point named " Focus' " to the right side of the lens to change to a concave lens. From the center of the lens all the way to where it's object is and it's object is over here which is not 18. 3D-printed acoustic lenses can improve the performance of ultrasound beams targeting the brain by correcting for the effect of the skull. In our study of lenses, we saw that if the source was placed within a focal length of a converging lens, the lens yielded a magnified image on the same side of the lens as the source. Thin Lenses Physics 227 Lab 1 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 lens (f is -). The distance from the center of the lens to the focal point is the lens's focal length f. What is the power in D of the tear layer between the cornea and the lens if the correction is ideal, taking the tear layer into account? Assume that a normal human has a near point of 25. A lens is a piece of transparent material, usually circular in shape, with two polished surfaces, either or both of which is curved and may be either. Low Energy Neutron Source (LENS) The Low Energy Neutron Source is a pulsed neutron source at the Indiana University CEEM. Understanding how light rays can be manipulated allows us to create better contact lenses, fiber optic cables, and high powered telescopes. Few weeks ago, I would like to see if integrating physics into Lens Studio was possible, I looked for a very simple physics engine library on internet and found "Verlet-JS". Lens is an optical device which converges or diverges the rays of light before transmitting. To continue with your YouTube experience, please fill out the form below. The Physics: Our eyes can see many colors of visible light. Converging Lenses As long as the object is outside of the focal point the image is real and inverted. For removing this defect, the power of lens required is ____. com! This tutorial introduces optics and lenses in physics. Lens is an optical device which converges or diverges the rays of light before transmitting. Now apply the thin lens equation to determine focal length. Thin Lens and The Thin Lens Equation (01/10/03). If an image is on the left side of a lens ( i. Assumptions. Ensure complete coverage. Light from the sun looks white to our eyes. Physics Classroom says: Diverging lenses refract light quite differently than converging lenses. A quantum bit stored in the spin excitation of an atomic cloud could be "focused" onto the quantum state of a single atom. Each eye has a lens -- a window made of clear protein and water that. Refrigerators of the future may be inspired by the weird physics of rubber. Check out my simulations, demonstration videos and teaching ideas. If the equation shows a negative image distance, then the image is a virtual image on the same side of the lens as the object. in Physics Converging Lens Combination When two converging lenses of equal focal lengths are used together, the effective focal length of the combination is less than the focal length of either individual lens. The distance between pin and lens will then be equal to the focal length of the lens. Lenses 7-26-00 Sections 23. zoom – Focal length (field of view) – Maximum aperture (the f number like f/2. Lab 9: Lenses and magnification Motivation Optics — the sub-field of physics focusing on the study of light — is important to many areas of biology, including vision, ecology, botany, neurobiology and molecular biology. The inclined plane is an easy machine. Questions about any of these labs can be directed to Jim Keefer Density of Liquids, Graphs, Sig. If Lens is not immersed in Ambient Medium, value of Refractive Index of Ambient Medium is "1". Links Waves Light Revision Questions gcsescience. Now apply the thin lens equation to determine focal length. 5: 24 March 2006. A worksheet to construct ray diagrams to show where images are formed by a converging (convex) lens and a diverging (concave lens). 25 D, and the person has a near point of 29. the type of lens (converging or diverging) the type of image (real or virtual) the object distance; algebraic. A diverging lens always form an upright virtual image. Continue to move the lens away from the lamp housing until a sharp image is formed on screen again. The distance from the center of the lens to the focal point is the lens’s focal length f. Other sections include motion, heat, electricity, magnetism, and modern physics. net dictionary. MagnificationEdit. lens - lenses are compound in nature and of sophisticated design, with most offering the facility to zoom in on an image. BRIGHAM YOUNG UNIVERSITY Search BYU : Contact | Help. In August 1987 Astro-Physics relocated to their first facility that could truly be called a factory capable of managing most aspect of production. Physics Short Note (Sinhala) This android application is developed to help the students who are doing their A/L in Science stream. converging and diverging lenses, focal length; use of formula (1/p) + (1/q) = 1/f, with sign conventions; real and virtual images; lens strength, diopters; lens aberration. Physics gives students a new understanding of the world around them. freesciencelessons. 25 m (unless you are nearsighted!). Basic Physics The Lens Equation R Horan & M Lavelle The aim of this package is to provide a short self assessment programme for students who want to understand image formation by lenses. org internet news portal provides the latest news on science including: Physics, Space Science, Earth Science, Health and Medicine. This position is located behind the lens and is usually labeled as F in ray diagrams. An example of a converging lens is a magnifying glass. This interactive Flash simulation allows students to investigate the properties of converging lenses. NEXUS/Physics 132, Spring 2014 Lab 9: Introducing geometric optics through experimental observations. For the convex lens seen in the image below, we see the parameters d o, d i, and f. When parallel rays of light pass through a convex lens the refracted rays converge at one point called the principal focus. View Lab Report - 614 Lens & Mirror Lab from PHYSICS physics at Wellington High School, Wellington. 14 LENS AND MIRROR LAB Table 1 do Object Distance, cm 5. MagnificationEdit. Measure the height of the image, h i. Install the Nikon lens and carrier so that the two beams intersect in the middle of the lens body. If so, if it was a -20. Lens definition is - a piece of transparent material (such as glass) that has two opposite regular surfaces either both curved or one curved and the other plane and that is used either singly or combined in an optical instrument for forming an image by focusing rays of light. Zoom lenses have a range of focal lengths, a feat which is accomplished by using a complex series of lenses which can be moved relative to each other. Lenses are basically of two types. (b) The image formed by the convex lens is 20. HTML5 Physics Simulations for K-12 and Higher Education PhET- Founded in 2002 by Nobel Laureate Carl Wieman, the PhET Interactive Simulations project at the University of Colorado Boulder creates free interactive math and science simulations. 0 cm to its right. Like other fields of science, new laws of physics build on or modify existing laws and theoretical research. It is denoted by the letter D. Due to the laws of physics, faster and longer lenses, especially when combined with larger sensors, take up more space in a device. - [Voiceover] If I had been handed this problem on a physics test I probably would have freaked out. Leaving Cert Physics All notes have been updated as of November 2010 and now include exam questions plus solutions and related syllabus extracts. Calculators Optical Lens Calculator. How do lenses change the direction of light rays?. If this equation shows a negative focal length, then the lens is a diverging lens rather than the converging lens. This is how the optometrist will give the prescription. Lenz's law, in electromagnetism, statement that an induced electric current flows in a direction such that the current opposes the change that induced it. for 1=100 cm D=-I dioptrie (diverging lens) for f £27 mm D=37 dioptrie The, main focussing is performed by the cornea, the lens doesihe fine-tuning. The more you pay the less flare you will experience. I succeeded to integrate it to Lens Studio (with a bit of rewriting code), and it works pretty well ! (to make simple things like moving earings for exemple). This is the physics lab demo site. Reflection of Light Reflection of Light Note: Both the angle of incident and angle of reflection must be measured from the normal. Physics 102: Lecture 19, Slide 3 Multiple Lenses Image from lens 1 becomes object for lens 2 1 f 1 f 2 2 Lens 1 creates a real, inverted and enlarged image of the object. The lens of the eye adjusts its power to produce an image on the retina for objects at different distances. I am having trouble understanding what signs mean in regards to Lenses and Mirrors. This basically adjusts where the focal point of light entering the eye is, glasses and contact lenses are designed to adjust it so that the focal point of the light lies on the retina. A convex lens (curves outward) will help if you’re farsighted. "Lenses and Mirrors" (1975). Geometric Optics 2. A telescope with an objective lens with a diameter with a wavelength of light can barely resolve two objects with an angular separation of using The separation distance between the two objects, we will call this , and the distance to the objects from the telescope objective can be related. Look at those two sample pictures! Wow! You can now give any Nikon F-mount lenses or adapters a super macro super power! UPDATE: Added a new retention ring for lens-side mounting. The Mathematics of Lenses If a piece of glass or other transparent material takes on the appropriate shape, it is possible that parallel incident rays would either converge to a point or appear to be diverging from a point. (You may remember this from introductory optics, perhaps you have seen a formula such as 1/s + 1/s' = 1/f for locating the image formed by a lens. lens - lenses are compound in nature and of sophisticated design, with most offering the facility to zoom in on an image. These questions may be used to practice for the SAT physics test. The focus of convex lenses is where rays parallel to principal axis go. com! This tutorial introduces optics and lenses in physics. Ask any physics question and get an answer from our experts in as little as two. It is a diverging lens, meaning that it spreads out light rays that have been refracted through it. How does a lens form an image? See how light rays are refracted by a lens. Two prisms can bend light toward the principal axis acting like a crude converging lens but. Physics with animations and video film clips. Like other fields of science, new laws of physics build on or modify existing laws and theoretical research. If this equation shows a negative focal length, then the lens is a diverging lens rather than the converging lens. Modified by J. 0 mm high is to be projected so that its image fills a screen 1. Lab 9: Lenses and magnification Motivation Optics — the sub-field of physics focusing on the study of light — is important to many areas of biology, including vision, ecology, botany, neurobiology and molecular biology. Part II was added by N. 40 D – 4 D – 2. " This instrument is in the Garland Collection of Classic Physics Apparatus at Vanderbilt University, and was probably purchased ca. The most commonly considered form of magnification is linear magnification, although angular magnification is sometimes also encountered. Class 10 Physics. Chapter 35: Lenses. To see all the colors separately, you can use a prism. link They were first investigated in the 1890s. For removing this defect, the power of lens required is ____. Keep up to date: © 2019 Axis Communications AB. What does a Negative Image Distance indicate for a mirror and lens What does a Negative Focal Point indicate for a mirror and lens What does a Negative Image Height indicate for a mirror and lens What does a Negative Magnification indicate for a mirror and lens. [Physics Lessons] [Chemistry Lessons] This website is designed and maintained by Science Joy Wagon and may not be reproduced or redistributed without written permission from Science Joy Wagon. Lab 9: How can microscopes magnify objects? Exploring Light and Lenses. 1m are placed co-axially in contact. Lenses are used as prosthetics for the correction of visual impairments such as myopia, hyperopia, presbyopia, and astigmatism. 1 - Lenses and the Formation of Images. If you're still relying on the original lens that came with your DSLR or mirrorless camera, it may be time to see what other digital camera lenses can do for you. The focal length, f, is the distance between F and the lens. Buy Solve for Happy: Engineer Your Path to Joy on Amazon. A more specialized form of lenses, spectacles appeared around the 12 th century, but it took until contemporaries of Galileo and later Newton to develop a decent telescope. Lens Makers Formula. Lenses and the Camera. Teach Yourself Physics Visually in 24 Hours - by Dr. These difference may vary +/- 5%. com provides ICSE Solutions for Class 10 Physics Chapter 4 Refraction through Lenses and Optical Instruments for ICSE Board Examinations. It is represented by the letter P. For each situation below, locate and describe the image (type, orientation, size, and location) using a ray diagram and the lens equations if the object is placed:. In any event, I'm not sure which side of the lens the given solution places the object. The law of reflection state that a. Two prisms can bend light toward the principal axis acting like a crude converging lens but. Generally lenses are made up of glass or transparent plastic and the same can be used for transmitting, refracting or for focusing the light. txt A group of physics students placed a candle in front of a thin, converging lens. A camera lens is composed of multiple lens elements assembled and fitted together in a tube called a lens barrel. Like other fields of science, new laws of physics build on or modify existing laws and theoretical research. Magnifiers. The Field of View Calculator (or FOV) is used to help predetermine proper lens selection prior to installation. Since you said a real image is formed, that means the absolute value of the power of the concave lens in smaller than the power of the convex lens. Estimate the rail scale reading that corresponds to the point of intersection. A converging lens always has two focal points, the primary focal point on the near side of the lens (towards the oncoming light rays) and a secondary focal point on the far side of the lens (away from the oncoming light rays). Use a light source, optics bench, lens, and viewing screen to measure object distance, image distance and size. In any event, I'm not sure which side of the lens the given solution places the object. Learn more. The focal length of the lens is also adjustable and the lens and object can be moved in two dimensions. When the object is beyond one focal length, a converging lens produces a real, inverted image. 00 centimeter tall is placed at x = -50. The user can change the index of refraction and control the lens curvature to see how light rays are refracted by a lens. The focus of convex lenses is where rays parallel to principal axis go. Experiments to measure the focal length of a converging lens Physics Homework Help and Experiments to measure the focal length of a converging lens Physics Assignments Help available 24/7, as well as Assignments Experts and Tutors also available online for hire for Physics Projects. These questions may be used to practice for the SAT physics test. Wallace Professor of Applied Physics and Vinton Hayes Senior Research Fellow in Electrical Engineering at SEAS. Called also crystalline lens. Part II was added by N. Light, eometrical optics: the lens equation: object distance, image distance and focal length. See also glasses. An intraocular lens implant is an artificial replacement for the lens of your eye. The magnification of an object is the ratio of the height of the image (h i) where you can see the height of the actual object is being magnified (h o). In these examples, the lens will be assumed to be thin, in which case the thickness of the lens is negligible compared with it focal length. relates the focal length f of the lens, the image distance S 1, and the object distance S 2. Algodoo gives you the opportunity to play with physics. A more specialized form of lenses, spectacles appeared around the 12 th century, but it took until contemporaries of Galileo and later Newton to develop a decent telescope. These lenses can be arranged to show various effects and phenomena. Two lens system - Image distance and magnification Home Problems and Answers Optics Two lens system - Image distance and magnification Two converging lenses, with the focal length f 1 = 10 cm and f 2 = 15 cm are placed 40 cm apart, as shown on the figure. A slide 24. Convex lenses are converging lenses, and concave lenses are diverging lenses. The ray passing through optical centre passes straight through the lens and remains undeviated. For a mirror or lens, the light rays come into the optical device from one side; let’s call this the “IN” side. Sorry for the interruption. Define convex lens. (General Physics) a device that diverges or converges a beam of electromagnetic radiation, sound, 4. In other words, any time you are asked to understand image formation by a spherical lens, it is likely to be a geometric optics problem. Image formation in convex lens can be explained with the help of three principal rays shown in figure. A lens is an optical device which transmits and refracts light, converging or diverging the beam. For each statement, below, click the button in the column that best describes your physics help for free team's approach to customer service An essay conclusion is the next most important part after the introduction. These difference may vary +/- 5%. In a clinical setting, the technique could be used to create lenses quickly and cheaply for individual patients. A compound lens system consists of two converging lenses, one at x = -20. This presents a less confusing situation w. Thin Lens Equation. Use this method to determine f’, focal length of the diverging lens as follow: - Using the thin lens equation, calculate distance of the image q formed by the converging lens q = _____cm. Lensmaker Equation is used to determine whether a lens will behave as a converging or diverging lens based on the curvature of its faces and the relative indices of the lens material and the surrounding medium. If this is too basic for you, you can read up on A Level Physics (equivalent to Advanced placement) Most of the topics have multiple-choice questions (MCQs) quiz for you to practice. As an example, a convergent lens forms a real image of a candle's flame on a screen wall. Lens is very thin. Since you said a real image is formed, that means the absolute value of the power of the concave lens in smaller than the power of the convex lens. Convex lenses "The lens which causes incident parallel rays to diverge at a point is known as convex or converging lens. Spherical aberration is a prominent image defect for a point source on the optical axis of such a lens. The focal length is the distance from the center of the lens to the focal point. Estimate the rail scale reading that corresponds to the point of intersection. Sorry for the interruption. 00 centimeter tall is placed at x = -50. About this quiz: All the questions on this quiz are based on information that can be found at Physics: Lenses. It is negative if the image appears on the same side of the lens as the light source. This basically adjusts where the focal point of light entering the eye is, glasses and contact lenses are designed to adjust it so that the focal point of the light lies on the retina. Physics gives students a new understanding of the world around them. Look at those two sample pictures! Wow! You can now give any Nikon F-mount lenses or adapters a super macro super power! UPDATE: Added a new retention ring for lens-side mounting. 0 mm high is to be projected so that its image fills a screen 1. In a clinical setting, the technique could be used to create lenses quickly and cheaply for individual patients. A lens which is thinner at the edges and thicker at the centre is known as convex lens. And with a diffraction limited lens, wide apertures demand higher resolution before the diffraction limit is reached. A telescope with an objective lens with a diameter with a wavelength of light can barely resolve two objects with an angular separation of using The separation distance between the two objects, we will call this , and the distance to the objects from the telescope objective can be related. Lenses Lenses refract light in such a way that an image of the light source is formed. One side of the lens is flat, and the other is convex with the radius of curvature of 30 cm. If the lens were much fatter then the distance from the centre to the predicted focal point would be inside the lens and therefore not valid. Lenses and curved mirrors are optical instruments designed to focus light in predictable ways. An object 1. Two prisms can bend light toward the principal axis acting like a crude converging lens but. Start studying Physics: Lenses. A form using the Cartesian sign convention is often used in more advanced texts because of advantages with multiple-lens systems and more complex optical instruments. The lens, by changing shape, functions to change the focal distance of the eye so that it can focus on objects at various distances, thus allowing a sharp real image of the object of interest to be formed on the retina. freesciencelessons. 25 D, and the person has a near point of 29. The effective focal length of two combined lenses is measured. Three Share Physics Nobel for Exoplanet and Cosmological Discoveries This Lake on Mars Was Drying Up 3. Index | Information about this Applet | Related Applets | Information about this Applet | Related Applets. The diagram below shows the cross section of a human eye. A lens, whether it is a convex lens or a concave lens, has two spherical surfaces which form a part of a sphere. Normally, one or both sides of the lens has a spherical curvature. Most camera lenses consist of a converging lens followed by an diverging lens followed by a second converging lens. The cornea and lens form a system that, to a good approximation, acts as a single thin lens. The aperture of the lens is small. Magnifiers. As a ray of light enters a lens, it is refracted; and as the same ray of light exits the lens. Move the tip of the "Object" arrow to move the object. Several TECHSPEC® Imaging Lenses are available that offer unique imaging capabilities that are not capable with standard lenses, such as TECHSPEC® Telecentric Lenses for edge contrast imaging or TECHSPEC® SWIR Imaging Lenses, which have been optimized for use with shortwave infrared wavelengths. Most lenses are described by their focal length. Lenses work by refracting, or bending, light. uk In this video, we start looking at lenses. Magnification is the increase (or decrease) in size of an image produced by an optical system compared to the true size. A collection of lenses intended to make an image at one end of an optical system is known as an eyepiece. Lenses have two focal points, one on either side of the lens. First we look at the two. The most important thing to remember about any. A small needle, with its tip on the principal axis of the lens, is moved along the axis until its inverted real image conicides with the needle itself. Definition of LENS in the Definitions. Apparatus : An optical bench with three upright (central upright fixed , two outer uprights with lateral movements ), a convex lens with lens holder , …. It takes as its object the image of the objective lens. UNDERSTANDING CAMERA LENS FLARE. Convex lenses “The lens which causes incident parallel rays to diverge at a point is known as convex or converging lens. This interactive Flash simulation allows students to investigate the properties of converging lenses. Consider now the ray diagram for a diverging lens. Method (3). Image formation in convex lens can be explained with the help of three principal rays shown in figure. Lens formula gives the relationship between the object distance (u), the image distance (v) and the focal length (f) of the lens. To continue with your YouTube experience, please fill out the form below. Two lens system - Image distance and magnification Home Problems and Answers Optics Two lens system - Image distance and magnification Two converging lenses, with the focal length f 1 = 10 cm and f 2 = 15 cm are placed 40 cm apart, as shown on the figure. Light diverging from the primary focal point and approaching a converging lens will exit the lens with the rays parallel. The minus sign indicates that the focal point is virtual or the rays do not pass through the point. Define power of a lens. Homework resources in Mirrors and Lenses - Physics - Science. Is a convex (curves out) lens a converging lens or a diverging lens? 13. The following table gives types of converging lenses. A concave lens is flat in the middle and thicker at the edges. A compound lens is an array of simple lenses (elements) with a common axis; the use of multiple elements allows more optical aberrations to be corrected than is possible with a single element. An object 1. A worksheet to construct ray diagrams to show where images are formed by a converging (convex) lens and a diverging (concave lens). • Pupil-The black circle that we see in the middle of the eye. Apparatus: Optical bench, light box, lenses, lens holders, illu minated target object, white screen with scale, mirror. Ray Optics And Optical Instruments. A worksheet to construct ray diagrams to show where images are formed by a converging (convex) lens and a diverging (concave lens). A prism is a piece of glass or plastic in the shape of a triangle. Index | Information about this Applet | Related Applets | Information about this Applet | Related Applets. If Lens is not immersed in Ambient Medium, value of Refractive Index of Ambient Medium is "1". The circle next to the answer will turn yellow. The ray passing through optical centre passes straight through the lens and remains undeviated. The magnification of an object is the ratio of the height of the image (h i) where you can see the height of the actual object is being magnified (h o). The rst thing you need to do is calculate the image distance, d i1, for. They can look at a rainbow and not just marvel at its beauty but also understand how it is formed. Since you said a real image is formed, that means the absolute value of the power of the concave lens in smaller than the power of the convex lens. The predictions of the thin-lens equation are tested in detail for a single lens. Homework resources in Mirrors and Lenses - Physics - Science. Measurement of object and image distances. An equiconvex lens with radii of curvature of magnitude r each, is put over a liquid layer poured on top of a plane mirror. Corrected exercises. Focal lengths of convex lenses are positive. The team directed an ultrasound beam through each lens and measured the resulting sound field inside a phantom, or model head, whose skull shape matched their computer model. Damla Bayraktar Aksel, Koç University, Migration Research Center/ International Relations, Post-Doc. (Equivalent to American high school diploma) Sub-Topics: Thin converging lenses Ray diagrams for. When parallel rays of light pass through a convex lens the refracted rays converge at one point called the principal focus. The focal length of a camera lens is displayed on the barrel of the lens along with the measurement of the largest aperture and the maker. The focus of the concave lenses is where rays parallel to principal come from. (You may remember this from introductory optics, perhaps you have seen a formula such as 1/s + 1/s' = 1/f for locating the image formed by a lens. The O Level Physics content here is equivalent to the Physics required to obtain American high school diploma. Define lens formula. GAYATHRI, Lecturer in Physics 14. All the distances are measured from the optical centre of the lens. In August 1987 Astro-Physics relocated to their first facility that could truly be called a factory capable of managing most aspect of production. The lens of the eye adjusts its power to produce an image on the retina for objects at different distances. Targeting the brain with focused ultrasound could enhance drug therapies by temporarily opening the blood-brain barrier. Launch coasters don't require gigantic lift hills (which saves a good deal of space), and offer a different kind of anticipatory thrill. Physics and Chemistry by a Clear Learning in High School, Middle School, Upper School, Secondary School and Academy. An optical lens functions by refracting light at its interfaces. The shape and index of refraction of the lens determine its properties. Reflection of Light Reflection of Light Note: Both the angle of incident and angle of reflection must be measured from the normal. The distance from the center of the lens to the focal point is the lens's focal length f. Thin Lens and The Thin-Lens Equation View the image (I) of an object (O) is responding to the changes of its distance (o) to the lens, its height (h) and the type of lens (f > 0 for converging or f 0 diverging). Lens Maker Equation. Lenses are common optical devices constructed of transparent material e. The user can change the index of refraction and control the lens curvature to see how light rays are refracted by a lens. In other words, any time you are asked to understand image formation by a spherical lens, it is likely to be a geometric optics problem. 700 MIRRORS AND LENSES §38-2 The paths of light rays incident upon the surface of a mirror may be determined by application of the laws of reflection. From figure one it is apparent that the incoming light rays that hit the lens are bent (refracted) inside the lens and that the rays are all focused at one single point. A thin lens with spherical surfaces will give an undistorted image. If an image is on the left side of a lens ( i. Prove that image distance equals (M + 1) focal lengths for a converging lens, where M is the magnification. If any of you can clarify the following. Given a standard, simple lens like eyeglasses, contact lenses, or the lens in a movie projector, there is an obvious axis of symmetry about which the lens could be rotated and not have any effect on the image produced. 10 Ray diagram for a diverging lens. (a) An object is placed 20. The following lab was created by Nick Donovan. What is the object distance, measured in focal lengths?. is the distance from the object to the mirror or the lens (always positive). The straight line passing through the centre of curvature of the curved surfaces of the lens is the principal axis of a lens. Converging lenses, like those normally found in reading glasses, have positive refracting powers. Ask any physics question and get an answer from our experts in as little as two. Normally, one or both sides of the lens has a spherical curvature. Lighthouses needed large lenses to gather the light from a lamp and make it into a beam. Studies Immigration, Cultural Studies, and Political Sociology. A converging lens similarly corrects farsightedness (picture (d)) 1. Chegg is one of the leading providers of physics help for college and high school students. The goal of the experiment is to be able to analyze ray diagrams so as to determine fundamental properties of image formation. That's why it gave you this distance between lenses. EQUIPMENT For this problem, you will be provided with an optical bench, a convex lens mounted in a lens holder, an empty lens holder for attaching a sheet of white paper to serve as an imaging screen, a long. A good example of a diverging lens is a bi-concave lens, as shown in the diagram. the way the lens is shaking. For any of the experiments, click the button to reset parameters to the initial conditions. A concave lens is also called a diverging lens. Thin Lens and The Thin Lens Equation (01/10/03).