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Why must you always use the low power lens when you are first focusing on a specimen?
Wiki User
∙ 15y ago
It is supposed to help you center on the specimen.
Wiki User
∙ 15y ago
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If after focusing in low power only the fine adjustmentneed be used to focus the specimen at thehigher power the microscope is said to be what?
parfocal
When focusing a specimen you should always start with which objective?
Ocular Lens (eyepiece) or Stage
What is the lens that is used to find the specimen on a microscope?
You use the low power lens to find the specimen with a microscope. Once you have found the specimen on low power, you can switch to high power for greater magnification. Just be sure to use only the fine adjustment knobs for focusing on high power so the high power objective won't hit the slide.
If after focusing in low power only the fine adjustment need be used to focus the specimen at the higher powers the microscope is said to be .?
parfocal
If after focusing in low power only the fine adjustment need to be used to focus the specimen at the higher powers the microscope is said to be?
parfocal
If after focusing in low power only the fine adjustment need be used to focus the specimen at the higher powers the microscope is said to be?
parfocal
What is the objective lens used to locate the specimen and the first focus?
When viewing a specimen, you must always use the lower power objective lenses first. Low power lens gives the widest field of view and makes it easier to find the specimen when you look through the microscope. Finding the specimen at high power, without first centering it in the field of view at low power, is nearly impossible.
How should you first focus on a specimen when using the microscope?
start by focusing with the lowest lens to make sure the slide is right and you can see the specimen them proceed to the next lens power and focus again just to make the view clear then proceed to the highest and focus one more time
Why is it important to focus specimens under the Low Power Objectve before observing it under the High Power Objective?
It allows you to center the specimen, and if it is set up correctly, then when you switch objectives it should still be there and only need fine focusing. It also reduces the chance of crushing the specimen and/or breaking the slide or the lens as the LPO is further away from the slide than the HPO.
What is the procedure for the operation of a microscope?
First put the specimen into focus using a low power lens, then switch to a higher power lens if needed.
How do you make the proper wet mount of the letter e?
1. Use the eyedropper to place a drop of water on the center of a microscope slide2. Use the tweezers to position the letter "e" in the center of the drop.3. Holding the cover slip at a 45 degree angle, lower it slowly over the drop of water. Here's what the letter "e" looks like under low and high power. As you can see, the specimen appears to be upside down and backwards. As you can see, when you switch to high power the field of view DECREASES. Field of view is the amount of the specimen you are able to see. The higher the power, the less you see of the entire specimen. This is why it is always better to begin focusing on the lowest power possible. Beginning on the lowest power gives you the Greatest field of view, which means you will be able to see the entire specimen. For example, you most likely learned the alphabet in preschool, yet it is difficult to tell that the specimen under high power in the picture above is the letter "e".
What is the correct procedure for the operation of a microscope?
First put the specimen into focus using a low power lens, then switch to a higher power lens if needed.
