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What is the maximum useful magnification of a compound light microscope?
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∙ 11y ago
1000X
Wiki User
∙ 11y ago
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What limits the useful magnification of a compound microscope?
Several things do: 1) what magnification the ocular is (usually 10x) and the highest magnification of the objectives (usually 100x), giving you a total mag of 1000x 2) resolution, which in turn is affected by numerical aperture
Which microscope is most useful for visualizing a biofilm?
scanning acoustic microscope
What type of microscope is useful for viewing human hair?
Any ordinary microscope is fine. Just make sure it's not broken!
Magnification without increased resolution is not useful for studying specimens. why?
Mere magnification without added detail is scientifically useless, just as endlessly enlarging a small photograph may not reveal any more detail, but only larger blurs. The usefulness of any microscope is that it produces better resolution than the eye. Resolution is the ability to distinguish two objects as separate entities, rather than seeing them blurred together as a single smudge.
The most useful adjustment for increasing image contrast in low power magnification is?
by closing down the diaphragm
What limits the useful magnification of a compound microscope?
Several things do: 1) what magnification the ocular is (usually 10x) and the highest magnification of the objectives (usually 100x), giving you a total mag of 1000x 2) resolution, which in turn is affected by numerical aperture
What is dissecting?
A dissection microscope is called a stereoscopic microscope. It has low magnification that is useful for viewing large, thick objects.
What is Dissecting microscopes?
A dissection microscope is called a stereoscopic microscope. It has low magnification that is useful for viewing large, thick objects.
For a microscope to be useful it must combine two properties?
it must combine magnification and resolution
What is the light microscope's magnification?
That means how much larger you see something, compared to seeing it with the naked eye. The limit for USEFUL magnification is about a thousand, in the case of hte light telescope.
Which part of a light compound microscope would be most useful in adjusting the amount of light?
Your light intensity knob which is either on the right, or left of the base of the microscope. When you increase your magnification via the objective, increase your substage iris diaphragm. ie) 10x objective ~ 0.2, 40x ~ 0.4
What are the common functions of computer microscopes?
A computer microscope can be used on almost any object and requires no preparation of the specimen. It is useful because the images are projected on the computer. The magnification is restricted on a computer microscope.
How is compound light microscopes different than an electron microscope?
A compound microscope uses several lenses. Pressumably it is designed to work with visible light. An electron microscope uses electrons instead of light; since electrons (typically at about a million volt) have a much shorter wavelength than light, they have a much better resolution.
Which microscope has a better resolution a light microscope or a electron microscope?
An electron microscope is capable of much higher resolution and greater magnification than a light microscope.Short Answer:Electron microscopes have much better resolution and are capable of much higher magnification than light microscopes because the wavelength of the electrons is thousands of times smaller than the wavelength of light.Light microscopes can typically resolve structures to a fraction of a micron compared to electron microscopes which in practice achieve resolutions of a few nanometers. Practically, electron microscope can have almost a thousand times greater resolution than an optical microscope.The useful magnification of an electron microscope is also in the range of a thousand times greater than an optical microscope.The actual performance of any microscope depends on its design and lensing system and so significant variation exists in the above practical characteristics and performance of both types of microscopes can be enhanced in various ways.Long Answer:An electron microscope uses an electron beam to illuminate a specimen and produce the image.An optical or light microscope uses a light beam to illuminate a specimen and produce the image.A microscope of either type is characterized by its magnification and resolving power. The magnification depends on the lensing system and can be increased to any degree, but the maximum useful magnification is limited by the resolving power.The resolving power of a microscope can not be better than the limits placed on it by the size of the wavelength of the illuminating beam. The smaller the wavelength, the smaller the structures that can be resolved in them image.Visible wavelengths of light are a few hundred nanometers. An electron microscope operates with electrons accelerated to a few hundred thousand electron volts of energy and with a wavelength in the range of few hundredths of an Angstrom.An electron microscope has a theoretical resolving power that is much greater than a light microscope and can reveal smaller structures because the electrons used have wavelengths (few hundredths of Angstroms) almost 100,000 times shorter than visible light (few hundred nanometers).An optimized electron microscope can achieve a practical resolution of a few Angstroms and a useful magnifications in the millions of times.A good light microscope can resolve structures smaller than a micron but is limited to about a few hundred nanometers resolution. The useful magnification of a light microscope is not much more than a thousand times.The electron microscope uses electrostatic and electromagnetic fields to act as lenses to control and focus the electron beam and to form an image. An optical or light microscope employs glass lenses.
Why are light microscopes useful?
A compound light microscope is able to provide more clarity and detail than a single lens microscope, which is its advantage. Compound refers to the microscope having more than one lens.
Which microscope would be most useful for quickly estimating the number of red blood cells in a patient's blood sample?
compound light
Do electron microscopes have greater magnification than light microscopes?
Short Answer:Electron microscopes have much better resolution and are capable of much higher magnification than light microscopes because the wavelength of the electrons is thousands of times smaller than the wavelength of light.Light microscopes can typically resolve structures to a fraction of a micron compared to electron microscopes which in practice achieve resolutions of a few nanometers. Practically, electron microscope can have almost a thousand times greater resolution than an optical microscope.The useful magnification of an electron microscope is also in the range of a thousand times greater than an optical microscope.The actual performance of any microscope depends on its design and lensing system and so significant variation exists in the above practical characteristics and performance of both types of microscopes can be enhanced in various ways.Long Answer:An electron microscope uses an electron beam to illuminate a specimen and produce the image.An optical or light microscope uses a light beam to illuminate a specimen and produce the image.A microscope of either type is characterized by its magnification and resolving power. The magnification depends on the lensing system and can be increased to any degree, but the maximum useful magnification is limited by the resolving power.The resolving power of a microscope can not be better than the limits placed on it by the size of the wavelength of the illuminating beam. The smaller the wavelength, the smaller the structures that can be resolved in them image.Visible wavelengths of light are a few hundred nanometers. An electron microscope operates with electrons accelerated to a few hundred thousand electron volts of energy and with a wavelength in the range of few hundredths of an Angstrom.An electron microscope has a theoretical resolving power that is much greater than a light microscope and can reveal smaller structures because the electrons used have wavelengths (few hundredths of Angstroms) almost 100,000 times shorter than visible light (few hundred nanometers).An optimized electron microscope can achieve a practical resolution of a few Angstroms and a useful magnifications in the millions of times.A good light microscope can resolve structures smaller than a micron but is limited to about a few hundred nanometers resolution. The useful magnification of a light microscope is not much more than a thousand times.The electron microscope uses electrostatic and electromagnetic fields to act as lenses to control and focus the electron beam and to form an image. An optical or light microscope employs glass lenses.
