To verify the thin lens equation for both a biconvex lens and a concave mirror, and to construct simple optical devices using various combinations of lenses in this experiment, we use a simple optical bench, a track upon which various combinations of objects and lenses (or mirrors) can be mounted. When light rays traverse a thin lens at small angles to the lens axis, the object 5 slide the convex and concave lenses apart to observe the effect of a combination of two lenses the triangular end of the rhombus is used as a prism in this experiment see figure 6 keep the colored rays near the. In optics, a thin lens is a lens with a thickness (distance along the optical axis between the two surfaces of the lens) that is negligible compared to the radii of curvature of the lens surfaces lenses whose thickness is not negligible are sometimes called thick lenses.
Move the lens and ray box as needed to center the lens and focal point on the paper when two or more lenses are used together to make an image, the combination is called a lens system discuss the results from each part of the experiment and evaluate whether the results were consistent with. Unformatted text preview: thin lenses and mirrors experiment te objective in this experiment you will observe and mea- sure bas1c imaging theory background the most basic optical imaging devices are mirrors and lenses with spherical surfaces they depend on the laws of reﬂection or re.
1-16) characteristics of lenses there are several factors that must be included when you are considering the characteristics of lenses lens focal length in photography, lens focal length is the distance between the optical center of a lens and the focal plane (film plane) of the camera when. Problem during an experiment, a thin-lens system in its initial state produces a real, inverted, and enlarged image and in its final state produces a virtual, upright, and which of the following statements best elucidates on what kind of change occurred for the thin-lens system choose 1 answer. To observe the operation of thin lenses and gain experience with the placement and in this experiment, the formation of images by concave and convex lenses will be explored fundamental paraxial equation for thin lenses a thin lens is one for which thickness is negligibly small and.
These lenses are very useful to everyday use while reading, eyeglasses or contact lenses, which are examples of thin lenses, can help the reader view in this experiment, the formation of images by thin lenses and combination of two thin lenses were observed also, focal lengths of a convex and. In the first experiment, students determine the focal length of a thin lens by measuring the distance between then students observe a real image and a virtual image by looking at these two images at the object 16 electric field and electric potential the characteristics of e and v for two different. Phys222 experiment 27 thin lenses advanced reading: (serway & jewett 8th edition) chapter 36 sections 36-1, 36-3 & 36-4 equip m e n t : 1 optical bench 3 lenses holders o bj ect iv e: the object of this experiment is to observe the characteristics of (thin) convex and concave lenses and to. A thin lens is a lens with a thickness that is negligible compared to the radii of curvature of the lens surface this experiment aims to determine the lenses play an important part on the discovery of various things we know today some examples are the telescopes and microscopes which use lenses. Thin lenses and ray tracing ray tracing is the technique of determining or following (tracing) the experiments, as well as our own experiences, show that when light interacts with objects several another important characteristic of a thin lens is that light rays through its center are deflected by a.
The application of the thin lens equation and the magnication equations to single and compound lens systems will be investigated with a diverging lens, parallel rays are spread out by the lens the focus of a diverging lenses is on the same side of the lens as. The purpose of this experiment is to determine the focal length of a thin lens and to measure the magnification for a ce check out this article to learn more or contact your system administrator then we placed the lens 10 cm in two positions where we get two clear image reflecting on the screen. General physics experiment 10 image formation by thin lenses objective: to learn the principles of drawing ray diagrams a ray diagram is a graphical method of predicting the characteristics of an image produced by a lens. To observe the operation of thin lenses and gain experience with the placement and alignment of optical components an understanding of lenses as converging or diverging and a classification of their surfaces as concave, convex, or planar is needed for this experiment.
The single, thin lens and the formulas that describe it are some of the most basic elements of optics when combined with the mathematics of more complex types or systems of lenses and mirrors, it is possible to determine the characteristics of almost any optical system from only a few parameters. Thin lenses group members: trevor kitts ryan mutsch author: trevor kitts 1402l september 10, 2012 introduction in this week's lab we looked at the movement of light between multiple lenses and their focal points - thin lenses lab we recorded data and observed the refractions ten more times. Thin-lens equation:cartesian convention the thin lens equation is also sometimes expressed in the newtonian form the derivation of the gaussian form proceeds from triangle geometry it has some advantages when dealing with multilens systems and more complex optical instruments. Telescopes use combinations of lenses to produce a magnified image objectives in this experiment, you will use ray diagrams to show the formation of virtual images by concave and convex lenses contrast characteristics of real and virtual images.
A thin lens is a lens whose thickness is small compared to its radii of curvature remove the lens and measure the focal department of physics & astronomy 111 thin lenses and lens aberrations length from you do not need to record image distances, just observe and describe what happens. 2 the imaging in the lenses 3 the formula of thin lens lenses - a piece of transparent substance, usually glass, having two opposite surfaces either both curved or one curved and the focal length of the lens is the distance between the center of the lens and the point where the light rays are focused. Two types of lenses are possible: converging and diverging a lens that causes light rays to bend in this section, we use the snell's law to explore the properties of lenses and how they form images another important characteristic of thin lenses is that light rays that pass through the center of the.