B. SHOW YOUR WORK for the 40X and the 100X field diameter...

b. SHOW YOUR WORK for the 40X and the 100X field diameter calculations. c. Fill in the rest of the table as well. Calculating Field Diameters and Total Magnification Total Magnification | Objective Lens | Field Diameter in mm | Field Diameter in ?m --- | 4X | | --- | 10X | Calculate: | --- | 40X | (calculated) | --- | 100X | (calculated) | d. Convert your field diameter measurements from mm to ?m for the last column. 4. Estimating Cell Size Lets' say you see the following under your microscope at a TM of 400X:

Transcript

00:01 Alright, so in this question, we are being given a table that looks like the one i have laid out down below.

00:06 So we're given our objective lens, which we have 4x, which is our scanning power, 10x, which is our low power, 40x, which is our high power, and then 100x, which is our highest or oil immersion power.

00:21 So, easiest thing to first calculate is our total magnification, and it is important to remember that our ocular lens actually already has a magnification.

00:31 Of 10x.

00:33 So when you are viewing something under a microscope, you are actually viewing it through not only the magnification of the objective lens, but also that of the ocular lens.

00:42 So increases the magnification of it.

00:46 So in order to figure this out, pretty much we're going to take our objective lens and multiply that by our ocular lens.

00:53 So for 4x, we take 10 times 4, and that is going to give us a total magnification of 40x.

01:01 And we can do 10.

01:02 10 times 10 for low power, which will get us 100x, 10 times 40, which is 400x, and then 10 times 100, which is 1000x.

01:23 So then when we're talking about field diameter, oftentimes that i'm not sure if this is part of the lab that was already completed.

01:31 It is best to visualize this by putting a ruler actually under the microscope.

01:37 So looking at a ruler under the microscope.

01:38 So looking at a ruler under the microcontract.

01:40 Scope as the slide.

01:43 And actually counting in millimeters like on each objective lens.

01:47 So scanning power, low power, how much of the ruler you can see within that view.

01:52 So how many millimeters you can see in your field view...

Question

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