2. What is the magnification stamped on the housing of the oculars on your microscope? __________ 3. What are the magnifications of each of the objectives on your microscope? a. Low power ____ b. High power ____ c. Oil immersion ____ 4. Calculate the total magnification for each ocular/objective combination on your microscope? | Ocular | x | Objective | = | Total magnification | | :--- | :---: | :--- | :---: | :--- | | | | | | | | | | | | | | | | | | | 5. Complete the following table by giving the function(s) of each part listed. | Microscope Part | Function(s) | | :--- | :--- | | a. Ocular | | | b. Objective | | | c. Condenser | | | d. Iris-diaphragm | | | e. Fine-adjustment knob | | | f. Coarse-adjustment knob | | | g. Condenser-adjustment knob | | | h. Mechanical stage | | | i. Microscope base | | Results 1. Microscope number __________ Monocular or binocular? __________ 2. Eyepiece adjustment notes: ________________________________________ 3. Draw a few representative cells from each slide and show how they are appeared at each magnification. Note the differences in size at each magnification. Algae Magnification ____ x ____ x ____ x Fungi Magnification ____ x ____ x ____ x
Added by Samantha G.
Close
Step 1
The overall magnification or the magnification of the eyepiece (ocular lens) is usually stamped or written here. Common magnifications for eyepieces are 10x or 15x. Show more…
Show all steps
Your feedback will help us improve your experience
Sri K and 62 other Biology educators are ready to help you.
Ask a new question
Labs
Want to see this concept in action?
Explore this concept interactively to see how it behaves as you change inputs.
Key Concepts
Recommended Videos
Magnification = Making an image larger or smaller The compound microscope uses two sets of lenses to magnify objects: the ocular lens and the objective lens. The total magnification of the specimen is calculated by multiplying the magnification of each set of lenses: Total magnification = Magnification of Ocular lens x Magnification of Objective lens Fill in the chart: Objective lens, Ocular lens, Total Magnification of a Specimen Scanning Low Power High Power How many times larger does the object appear under HIGH power view compared to LOW power view? Low Power: 10x High Power: 40x
Holly H.
The magnification and resolving power of a microscope are determined by the lenses of the microscope. Below are four illustrations of pollen grains viewed through four different microscopes. Based on the images, determine whether each microscope has low or high magnification and low or high resolving power.
Madhur L.
The "tube length" of a microscope is defined to be the difference between the (objective) image distance and objective focal length: $L=d_{1}-f_{\text { oblective }}$ . Many microscopes are standardized to a tube length of $L=160 \mathrm{mm}$ . Consider such a microscope whose objective lens has a focal length $f_{\text { oblective }}=7.50 \mathrm{mm} .$ (a) How far from the object should this lens be placed? (b) What focal length eyepiece would give an overall magnification of $-55 ?(\mathrm{c})$ What focal length eyepiece would give an overall magnification of $-110 ?$
Recommended Textbooks
Biology for AP Courses
Objective Biology for NEET
Introduction to General, Organic and Biochemistry
Transcript
18,000,000+
Students on Numerade
Trusted by students at 8,000+ universities
Watch the video solution with this free unlock.
EMAIL
PASSWORD