{[ promptMessage ]}

Bookmark it

{[ promptMessage ]}

Lab 6 - Shannon MacAdams Eric Kirchoff TA Miaoyin(Kevin...

Info icon This preview shows pages 1–3. Sign up to view the full content.

View Full Document Right Arrow Icon
Shannon MacAdams & Eric Kirchoff TA: Miaoyin (Kevin) Wang Physics 232—Section 232-006 Lab performed Feb. 24, 2009 Lab due Mar. 3, 2009 Optical Instruments Introduction: The purpose of this lab is to study a simple magnifier, simple telescope, and a compound microscope. By doing so, we will learn the difference between lateral magnification and apparent magnification and how to measure the two. Simple Magnifier: In this part of the experiment, a 6cm focal length lens was placed on one side of the optical bench and the 10 x 10 cm grid was placed 25 cm behind the lens. By moving the ruler back and forth, the unaided eye and the eye viewing from the lens tend to superimpose the resulting image. By finding the best position of the ruler that one can see a well focused magnified image of it but also see a well focused image of the grid with the unaided eye, the object distance can be recorded. The image distance then is 25 cm—the distance of distinct vision and the distance between the grid and eyepiece. Then, by choosing a specific length of the ruler and observing its magnified image and comparing it to the grid, the actual length of the scale can be determined and its apparent magnified length can be determined by comparing it to the grid. Linear magnification, as seen in the past couple of labs, is measured as the image distance over the
Image of page 1

Info icon This preview has intentionally blurred sections. Sign up to view the full version.

View Full Document Right Arrow Icon
object distance with a negative sign, so Ml=-i/o. Then the apparent magnification is Ma=Lm/La where Lm is the apparent, magnified, length and La is the actual length; both of which were measured previously. The theoretical magnification, obtained by Mt= 25/f +1, can be compared to the linear magnification (Ml) and the apparent magnification, Ma.
Image of page 2
Image of page 3
This is the end of the preview. Sign up to access the rest of the document.

{[ snackBarMessage ]}

What students are saying

  • Left Quote Icon

    As a current student on this bumpy collegiate pathway, I stumbled upon Course Hero, where I can find study resources for nearly all my courses, get online help from tutors 24/7, and even share my old projects, papers, and lecture notes with other students.

    Student Picture

    Kiran Temple University Fox School of Business ‘17, Course Hero Intern

  • Left Quote Icon

    I cannot even describe how much Course Hero helped me this summer. It’s truly become something I can always rely on and help me. In the end, I was not only able to survive summer classes, but I was able to thrive thanks to Course Hero.

    Student Picture

    Dana University of Pennsylvania ‘17, Course Hero Intern

  • Left Quote Icon

    The ability to access any university’s resources through Course Hero proved invaluable in my case. I was behind on Tulane coursework and actually used UCLA’s materials to help me move forward and get everything together on time.

    Student Picture

    Jill Tulane University ‘16, Course Hero Intern