Microscopy and the Metric System Margaret E. Vorndam‚ M.S. Version 42-0090-00-01 Lab Report Assistant This document is not meant to be a substitute for a formal laboratory report. The Lab Report Assistant is simply a summary of the experiment’s questions‚ diagrams if needed‚ and data tables that should be addressed in a formal lab report. The intent is to facilitate students’ writing of lab reports
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false. If true‚ write a “T” on the answer line. If false‚ write a word or phrase in the blank to make the statement true. F | 1) The microscope lens may be cleaned with any soft tissue. | F | 2) The coarse adjustment knob maybe used in focusing with all objective lenses. | T | 3) When beginning to focus‚ the lowest power lens should be used. | T | 4) Resolution decreases as the amount wavelength of light increases. | F | 5) When focusing always focus toward
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resulting in an image that your naked eye would ordinarily see if looking at the slide. The image is then magnified by the lower (objective) lens. The objective lens flips the image and magnifies it by bending the light. The light is bent as it passes through the convex surface on either side of the lens material. The eyepiece acts as a weaker version of the objective lens by flipping the image again and magnifying it further. Compound microscopes are used most commonly to
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Lab 2: The Metric System and Microscope Name _________________________ Date __________________________ Section 1: The Metric System The Metric System is known as the International System of Measurement. The Metric System is based on Standard-prefixes that correspond to ‘multiples of 10’. The measurements of volume (the liter)‚ mass (the gram)‚ and length (the meter) are the baseline for all metric unit conversion factors. In the United States‚ the English System is more commonly used;
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Microscope Parts & Function Parts of the Microscope |[pic] |1. Eyepiece |Contains a magnifying lens that focuses | | | |the image from the objective into your | | | |eye. | |
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lenses (ocular and objective). Binocular microscopes have two eyepieces while the monocular ones have one eyepiece. The ocular lens of a compound light microscope usually has a magnification of 10x (means that the specimen to be viewed is magnified 10 times). The objective lens consists of a revolving nose piece with different degrees of magnification. The objective lens with the magnification of 10x is called ‘the low power’ while the one with 40x is called ‘the high power’. Total magnification
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viruses and proteins. The Italians paved the road to the invention of the microscope when they discovered how to grind lenses during the 1300’s‚ and as a result‚ created the first spectacles. The first microscope was developed in 1590 by two Dutch lens grinders and spectacle makers Hans Janssen‚ father‚ and Zacharias Janssen‚ son‚ when they put two grinded lenses inside a tube. Later in the 1700’s‚ many discoveries were made to improve the microscope. One was that lenses combining two types of glass
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Organic Lab 1: Fractional Distillation Discussion: With the purpose of the experiment being to identify the 30 mL of unknown liquid‚ the theoretical basis of simple and fractional distillation must be deconstructed and applied to the data obtained describing the liquid in question. Simple distillation is a separation technique which can be used to separate and purify distillates from a liquid mixture which ideally contains one volatile and one non-volatile compound. If such ideal conditions are
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light to magnify the image (Figure ). They have a larger diameter lens called the objective lens and a small lens called an eyepiece. Good refracting telescopes utilize multiple lens systems to correct for color aberrations. Chapter discusses lenses in the section on “Stations for Sight”. Reflecting Telescopes Reflecting telescopes utilize one or more concave mirrors for the objective lens to condense the light and a small lens called an eyepiece. Pg3 Conclusion A telescope is an instrument
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EXPERIMENT 7 EXPERIMENT 7 EXP 7: THE FOCAL LENGTH OF A CONVEX LENS BY GRAPHICAL METHOD EXP 7: THE FOCAL LENGTH OF A CONVEX LENS BY GRAPHICAL METHOD ABSTRACT The report is about the focal length of a convex lens using the graphical method. The aim of the report is to determine the focal length of a convex lens using the graphical method. The focal length of an optical system is a measure of how strongly the system converges or diverges light. The method that was used was experimentation
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