What is objective lens inmicroscope

SF Fig. 2.2. (A) Light microscope Image courtesy of GcG modified by Rozzychan, Wikimedia Commons SF Fig. 2.2. (B) Dissecting microscope Image courtesy of GcG, Wikimedia Commons

Hi Jazib. We're really sorry to hear that your glasses were scratched while cleaning. We think you may have been sent the wrong product as our optical cloths are quite small and should never scratch delicate surfaces. If you could please send us an email at support@makersclean.com we can help you out.

Purpose of microscopepdf

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Both microscopes have similar features. Each microscope has an eyepiece as well as a light source. Light microscopes usually have eyepieces that are magnified 10x plus multiple objective lenses that are magnified between 4x and 100x (SF Fig. 2.2 A). The total magnification is calculated by multiplying the eyepiece magnification (10x) by the objective lens magnification (e.g., 40x), for a total magnification would be 400x. On a light microscope, a sample is placed on a glass slide and light is passed through the sample from underneath the stage. This type of microscope shows great detail of small, thin objects. To view thicker objects, the tissue sample must be thinly sliced and prepared on a glass slide in two-dimensions. With a dissecting microscope whole objects can be viewed in three dimensions. Samples do not need to be sliced, and larger, live animals can be observed. Light can be passed through from underneath the sample, but also from the top or side using an external light source. However, the magnification power of the dissecting microscope is less powerful than that of a light microscope.

Purpose of microscopein microbiology

A dissecting microscope is used to view three-dimensional objects and larger specimens, with a maximum magnification of 100x. This type of microscope might be used to study external features on an object or to examine structures not easily mounted onto flat slides.

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Typesof microscope

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Exploring Our Fluid Earth, a product of the Curriculum Research & Development Group (CRDG), College of Education. © University of Hawai‘i, . This document may be freely reproduced and distributed for non-profit educational purposes.

Importanceof microscope

Microscopes are useful tools for visualizing small structures in great detail. There are two common types of microscopes used in laboratories when studying algae: the compound light microscope (commonly known as a light microscope) and the stereo microscope (commonly known as a dissecting microscope).

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SF Fig. 2.2. (C) Filaments of the freshwater green alga Spirogyra sp. viewed under a light microscope with 300x magnification

A light microscope is used to visualize objects flattened onto glass slides in great detail. It typically has a magnification power of up to 1000x. A light microscope might be used when examining individual cells within living tissue.