Essays on Objective Lens

Introduction

Osmosis is the process by which water molecules move from a region of low concentration of solute to a region of high concentration of solute through a semipermeable membrane (Van 3). Osmosis therefore can define the movement of water in and out of the cytoplasm of a cell. A solution with a higher concentration of solute molecules than that of the cell cytoplasm is said to be hypertonic to the cell. On the other hand, a solution with a lower concentration of solute than that of the cell cytoplasm is said to be hypotonic to the cell. Purpose: The ...

- Introduction A compound light microscope represents two or more lens. The term compound refers to multiple or mixture. In compound light microscope built with binocular lens and objective lens. The binocular lens present near the eyepiece and objective leans near to nosepiece. The objective lens helps in enlargement of images and also to collect the light source. According to the requirement the objective lens also changes. In advanced compound light microscope the phase contrasts also possible. In earlier 1595 Zacharias Janssen invented the first light microscope using collapsing tubes. It produced a magnification of 9x. Now the magnification ...

1. Introduction to the Technique Magnification and high resolution imaging are very important in materials science, especially at present when nanotechnology materials are being created. Magnification and high resolution imaging can help in the characterization, identification, and confirmation of the existence of the desired material. Magnification and high resolution imaging become problems when the size of the assessed material becomes too small; such as, they are beyond the micrometer scale. Ordinary techniques in microscopy such as light microscopy where in a traditional light microscope is used could not suffice. Fortunately, in 1931, two scientists named Ernst Ruska and Mx ...

\sPrince Mohammad University

Introductory Biology

Report

Reem A. Alotaibi 2001100196 Introductory Biology

Section: 201

Dr. Tabassum Ashfaq Study of Compound Microscope Aim of the experiment: Objective of Study: 1- To identify the different parts of the microscope. 2- To know the functions of the different parts of the microscope. 3- To learn the different objective powers of the microscope. 4- To correctly use the microscope to see perfectly clear images of different specimen. 5- To understand the precautions needed while handling a microscope. Materials Required: - Microscope. - Pinus Pollen Grains. ...

Definition

Magnification refers to the process of making an object larger or smaller in size. It can be said basically to be the altering of the size the object. The magnified object is referred to as an image. Therefore the magnified object is shall only appear larger or smaller in size with the physical size maintained. This change is calculated and given in a numerical number referred to as the magnification.

Areas where magnification is used

Magnification is used in many fields of study and real life situations. In biology, small objects are magnified so as to be viewed properly. This involves the use of microscopes. ...

Part 1

1. 1. Eye piece 5.Arm 2. Objective lens 6.Coarse adjustment knob 3. Stage 7.fine adjustment 4. Base 2. What is the procedure (step by step) which you followed to do gram staining? (20 points) 1. Obtain a tissue sample for the gram stain. 2. Two or three drops of the sample were placed on the glass slide. 3. Use the electric slide warmer, heat the smear. Alternatively, this can be done by quickly passing it over a flame. Although should be very quick to avoid distortion. 4. Add crystal violet to the ...

Component One

The Data Quality Objectives (DQO Process) is a planning process that has been developed by the United States Environmental Protection Agency. This particular planning process is used when environmental information or data is used to make a choice between two specific alternatives or to make a derivation of contamination estimate. The process is also used in the development of acceptance and performance criteria that find use in the clarification of study objectives, defining of appropriate data type and the specification of potential errors of decisions that are then used as the basis for the establishment of the quantity and the quality of ...

THE MICROSCOPE

The fundamental objectives of this report are to learn how to: - handle and care about the microscope - Identify various parts of the microscope such as the eye piece, arm, coarse adjustment knob, fine adjustment knob, base, nose piece, objective lenses, stage condenser, and Iris diagram. - Define various terminologies used while using the microscope such as the total magnification, resolving power, working distance, parfocal and real and virtual images. - And finally to observe stained slides of bacteria or the fungi.

RESULTS

Concerning how to care about the microscope, the following should be taken ...