Magnifying Power Of Low-Objective Lens Lab Report

Concept 6.1 Biologists use microscopes and the tools of biochemistry to study cells 1. The study of cells has been limited by their small size, and so they were not seen and described until 1665, when Robert Hooke first looked at dead cells from an oak tree. His contemporary, Anton van Leeuwenhoek, crafted lenses and with the improvements in optical aids, a new world was opened. Magnification and resolving power limit what can be seen. Explain the difference. Magnification is the ratio of an object’s image size to its real size. Resolution is a measure of the clarity of the image; it is the minimum distance two points can be separated and still be distinguished

In this lab experiment our main focus was to get skillful in using tools such as the metric ruler, balances, thermometer, and graduated cylinder to capture measurements of length, mass, temperature and volume. Additionally, this lab helped us to become more familiar with the uncertainty of measurements, as well as becoming efficient with rounding our measurements to the correct numbers of significant figures. Our results are measured consistently with rounding to the closest answer we could possibly acquire as the data can tell you.

A. Eyepiece – transmits and magnifies the image from the objective lens to the eye.

Ocular Lens - The ocular lens is the lens you look in closet too your eyes. It helps magnify the specimen as well.

It was then during the 1950’s that Zacharias Jansen and his father, Han Jansen, created the first high-powered compound light microscope. Images could be magnified up to 9x which was a novel feat at that time. Zacharias and his father created the device after experimenting with glasses and discovered that by placing multiple lens in a tube they could increase magnification. Unfortunately, the microscope lacked the high resolution we have come to expect in modern-day light microscopes. The images produced by the Hans’ primitive microscope was extremely blurry and had limited

This lab was to inform us about the brightness of stars. We learned how to use the absolute magnitude and apparent magnitude to measure the luminosity of the stars. A stars brightness and magnitude are connected to each other. The lower numerical value of the magnitude the brighter the star will appear.

A patient follows a nurse into a vacant room with a chair in the center. The patient takes a seat in the chair and starts to observe everything around her. There are machines connected to the chair and more machines surrounding it. On the wall parallel to her there are letters that increase in size row after row on a large white paper. The doctor comes into the room and examines the patient by using the machines and making her read the letters on the wall across. The doctor continues to exam the patient by using a flashlight to see how the eye will respond. All these tests will allow the doctor to see how poor the patient’s vision is. All of these details will happen

Procedure: First, set up the microscope. Clean the ocular lenses and objectives with lens paper. Then pace the prepared e slide on the stage and make adjustments. Turn the rotating nosepiece until the 10x objective is above the ring of light coming through the slide. Move the slide using the X and Y stage knobs until the specimen is within the view. Adjust the focus by looking into the eyepiece and focusing the specimen with the coarse then fine focus knobs. Adjust diaphragm until there is sufficient light

When you stare at a point, you can only see detail within [2.5 degrees] about that center of focus. Beyond

These lenses represent an individual application. These applications are the influences towards my perspective and create the illusion I see the world as. The influence of my family, peers, religion, and experiences are the main lenses I look through because I interact with them on a daily basis. My secondary lenses include; my mental health, vicarious experiences, and personal preferences, as they are more self- concepts (building of who I am). I examine the world through the variety of lenses.

How do you differentiate between the two? Scopes and Binoculars have clear and evident design differences. Spotting scopes have one optical tube and can be seen with only one eye while binoculars have two optical tubes. Next let us examine the stability feature of these two devices. Binoculars are hand-held

so the mantis must rotate its head and look directly at an object for optimum

B. Label the diagram of the pocket microscope in Figure 4. Use the following terms: eyepiece,

Most microscopes, including those in schools and laboratories today, are optical microscopes. They use glass lenses to enlarge, or magnify, an image. An optical microscope cannot produce an image of an object smaller than the length of the light wave in use. To see anything smaller than 2,000 angstroms (about 1/250,000 of an inch) a wave of shorter length would

In this experiment, we experimented finding the fundamental quantities of length, mass, and time using many laboratory tools. We used a Vernier caliper, stopwatch, rulerm meter stick, wooden block, metal block, Dial-o-gram, different masses, and circular objects. We took into consideration the uncertainties of many different tools and objects into our experiment. The inherent uncertainties of different measurements and ways to propagate those uncertainties were learned during this experiment.