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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
What are the advantage and disadvatges of a light microscope?
The advantages and disadvantages of the light microscope relate to light, magnification and resolution. Light microscopes magnify visible light--an obvious advantage, since this is what our eyes can see. Magnification (how large an object appears) and resolution (the clarity of details) are both limited when using light microscopes.
What can you put on a specimen to make it easier to see through the microscope?
phenyle blue was a common dye used in biology when I was in college. You need to check to see what the particular item you are wanting to look at will react with first, though.
How many microscopes did Anton van Leeuwenoek make?
Anton van Leeuwenhoek invented a method for making small spherical lenses that much increased the magnification of simple (one lens) microscopes. The magnification of 250 times and possibly greater was ten times better than compound microscopes at the time.
Beyond the initial discovery of the method for making small spherical lenses, van Leeuwenhoek built microscopes and experimented with their design and use. In the process, he made important new discoveries of microscopic life.
Over a period of nearly 50 years, he made over 500 optical lenses (though they did not necessarily go into 500 different microscopes) and can be said to have constructed at least 25 variations on the basic design of the microscope. Nine of his microscopes still exist.
How does 4x on the low power equal 40 x on the microscope?
The objective lens (right above the slide stage) is 4x. The eyepiece (what you look into) is 10x. 4 times 10 = 40. Whatever the objective lens power is, you have to multiply it by the eyepiece power (usually 10x) to get the overall magnification.
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
What wheel do you use on a microscope to make the image clearer?
To make the image clearer on a microscope you can use the focusing lens.
What is the total area you see when you look into a microscope?
That would depend on the magnification you are using.
What are the names of the 2 lenses of the microscope?
The two main lenses of a microscope are the objective lens and the ocular (or eyepiece) lens. The objective lens is located near the specimen and typically has varying magnifications, while the ocular lens is situated at the top and is what the viewer looks through to see the magnified image. Together, they work to enhance the detail visible in the specimen being observed.
Why do start with low power on a microscope?
On where you start is totally optional, but it is most beneficial to start on the lowest power, so that you can adjust your magnification from then on to make out the object your trying to see. Start low then work your way to high.
What is the magnifying power of the eyepiece used?
That depends on the eyepiece, a 9mm eyepiece will have more magnification than a 22mm eyepiece.
What are the 3 microscope objective and their power?
The three main microscope objectives are scanning (4x), low power (10x), and high power (40x). These objectives provide different levels of magnification for observing samples at varying levels of detail.
What is the two function of the eyepiece on microscope?
1. To provide a stable platform, so that the eye can more easily stay focused on the object.
2. To exclude external light sources.
Why would you never use direct sunlight for your light in a microscope?
Using direct sunlight for microscopy can damage both the specimen and the microscope's optics due to excessive brightness and heat. It can also lead to glare and overexposure, making it difficult to observe fine details. Additionally, sunlight can introduce varying light conditions and shadows that compromise image clarity and contrast. Instead, controlled artificial light sources provide consistent illumination for optimal viewing.
Which objective shound be in position when the microscope is stored?
When storing a microscope, the low power objective (usually the scanning or low power lens) should be in position. This helps protect the higher power objectives from damage and ensures that the microscope is ready for quick use. Additionally, having the low power objective in place allows for easier handling and minimizes the risk of accidentally damaging the slides or lenses. Always ensure that the stage is lowered and the microscope is covered.
What is the other function of the revolving nose piece?
The revolving nosepiece, sometimes called a "turret," contains 2 or 3 different objective lenses, each of a higher magnification. This enables the user to examine the object on the slide at different magnifications.
