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Microscopes
Microscopes are used to look at things that are not visible to the naked eye. This category would demonstrate how microscopes work and information about different kinds of microscope.
4,322 Questions
Make sure that you only clean your microscope lenses when they are dirty and use the proper materials!
If your objective lenses are dirty, you can remove build-up with lens paper dipped in a very weak ammonia solution. Place one eye dropper full of household ammonia in 1/2 cup of water.
If you have any sticky substances on your objectives such as balsam, oily materials or paraffin, this should be removed with xylol.
To clean microscope eyepiece lenses, breathe condensation onto them and then wipe them with lens tissue. Kim-wipes are made by Kleenex and generally will work well. For stubborn spots, wipe the surface with tissue moistened with 95% alcohol. Wipe the lens dry with a dry tissue.
If you see black specks when you look through the microscope, turn the eyepiece lens to see if the specks also turn. If so, the dust is on either the inside or outside eyepiece lens. Clean the eyepiece lens with lens tissue. If the spots remain, remove the eyepiece lens and brush the inside of the eyepiece lens with a camel hair brush or lens paper.
DO NOT USE cloth, ordinary paper or fingers! Make sure that you use only special lens cleaning tissues!
Periodically inspect the power cords and plugs for safety and have a supply of replacement bulbs available.
Professional cleaning and adjusting should be performed whenever necessary at an optical shop specializing in microscopes. Usually the microscope manufacturer can recommend a qualified professional that services their microscopes and will not alter the warranty.
When microscopes are not in use, they should be covered with plastic and stored in a safe area where they won't get knocked over or stolen.
Keeping a clean microscope will ensure that you will get many years of quality use out of your microscope!
What is the function of a diaphrgam?
The diaphragm is a dome-shaped muscle that plays a crucial role in the process of breathing by contracting and relaxing to create a vacuum that draws air into the lungs. It separates the thoracic cavity from the abdominal cavity and aids in regulating pressure within the chest during respiration.
The condenser on a microscope is the part that is adjusted to control the amount of light passing through the stage. By adjusting the condenser, you can increase or decrease the amount of light reaching the specimen on the stage.
What power lens should you start with on a microscope?
You should typically start with the lowest power lens (usually 4x or 10x) on a microscope to locate and focus on your specimen. This allows you to have a wider field of view and better control over the focusing before switching to higher power lenses for more magnification.
No, a door knob does not typically use a wedge. A door knob functions by allowing a person to grip and turn it to open or close a door.
What is a microscope with more than one lenses?
A microscope with more than one lens is called a compound microscope. It typically consists of an objective lens near the specimen and an eyepiece lens for magnification. The combination of lenses allows for higher magnification and resolution compared to a simple microscope with only one lens.
What are things you can observe under a microscope?
You can scrape the inside part of your cell and examine the cheek cells. Also, you can use various plants such as an Elodea plant. If it is alive and wet, it is better.
What are the important things to remember in handling a microscope?
Some important things to remember in handling a microscope are:
When you pick up the microscope and walk with it, grab the arm with one hand and place your other hand on the bottom of the base.
Never touch the lenses with your fingers. Your body produces an oil that smudges the glass. This oil can even etch the glass if left on too long. Use only LENS PAPER to clean the glass.
When you are finished with your "scope" assignment, rotate the nosepiece so that it's on the low power objective, roll the nosepiece so that it's all the way down to the stage, then replace the dust cover.
Clean all slides, materials, and work area when you're done. Please, be careful with the slides and cover slips. They are made of glass and if broken, you will get cut and you will bleed.
What is proper ways of handling and manipulation microscope?
- 1
Set up the microscope on a flat surface. Always carry the microscope using two hands if the microscope must be transported from one area to another. One hand should support the bottom while the other hand is holding the arm. Once in place, remove the any covers and plug in the microscope.
- 2
Position the slide onto the stage. Clip it into or under the slide holders. Turn on the light from the illuminator under the stage. Center the slide the best way possible without using any focusing knobs or the eyepiece.
- 3
Look through the eyepiece, keeping both eyes open to avoid eye strain, while using the course focus knob to bring the stage and slide closer to the objective, which is the lens that extends below the eyepiece, until the object can be seen through the eyepiece. Use the fine focus knob (which will also be on the side of the microscope) to bring the image into sharper focus.
- 4
Center the object being viewed. Change the iris diaphragm under the stage using the level to open and close the iris. Change the amount of light entering the specimen as needed. Changing the amount of light going through the slide may show additional details not seen at higher light levels.
- 5
Change to the 10X objective which is the next longest lens by rotating the lens pieces. The object should appear larger and only require using the fine focus knob to bring it into sharper detail. Use the iris diaphragm to change the amount of light entering the slide. Continue to the 40X objective and repeat. Each time the object will appear larger and you will be able to see less of the object at any one time while viewing.
- 6
Lower the stage and add one or two drops of immersion oil to the slide. Change the microscope to the 100X objective. Slowly raise the stage using the course focus until the objective is touching the oil. Use the fine focus knob to bring the object into sharp focus. Clean the slide and objective with lens tissue after use.
- 7
Return the stage to the lowest level. Change the objective back to the 4X lens. Unplug the machine and replace any covers. Carefully return the microscope using both hands to where it is stored.
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What are the two kind of mirror in compound microscope?
Convex - which is the flat or the plain mirror and it has the lesser lights to receive
but its has the more light intensity.
Concave - which is the curve mirror where the lights to receive is more than the convex
but it has the less light intensity.
What are 10 ways to proper care in handling the microscope?
While moving the microscope from one place to another, always keep it in an upright position.
Is Bright-field microscopes are used for most microscopic work?
Bright field microscopes are most used for microscopic work.
If your specimen is too small to be seen with a light microscope you can use an electron microscope?
True.
What are the two types of microscopes and explain one differences?
The to types of microscope are as following :
1. Simple microscope
2. compound microscope
differences between these both is as following:
simple microscope has one Len but compound microscope has two Len.
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.
Why The tilting level requires adjustment for collimation error only?
The purpose of adjusting the tilting level is to ensure that the line of sight is horizontal and remains accurate despite any collimation errors that may occur. By correcting for collimation error, the leveling instrument can provide accurate and reliable measurements for various surveying and construction applications. Adjusting only for collimation error helps maintain the integrity of the leveling process and ensures that the instrument performs as intended.
What is the magnification of the eyepiece lens in a microscope?
The magnification of the eyepiece lens in a microscope is typically 10x. This means that when combined with the magnification of the objective lens, the total magnification of the microscope is calculated by multiplying the magnification of the eyepiece by the magnification of the objective lens.
One advantage of elcectron microscopes over light microscopes is their?
They have better resolution so the image they produce is more detailed and they can also be used to see internal details of cells. However the whole apparatus needs to be used in a vacuum so living organisms can't be observed.
