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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

Where is the diaphragm on the microscope?

Diaphragm in microscope is kind of shutter which can be used to adjust the ammount of light intensity. It is prresent just above the condensor which is known as Abbe condensor that collects the light directing it upward through any object on the stage.

What is the function of a fine adjustment on a microscope?

The fine adjustment knob on a microscope is used to make small, precise changes to the focus of the specimen. It allows for fine tuning of the image clarity and sharpness to achieve optimal magnification.

Why is it important to eliminate air bubbles from the slide of the microscope?

Air bubbles in a slide can cause distortions in the image, or cause things to move around when they shouldn't. You will not get an optimal viewing with bubbles in the image in most situations.

What is the hollow tube of a microscope through which light passes?

The hollow tube of a microscope through which light passes is called the body tube. The body tube contains lenses that magnify and focus the light coming from the objective lens to the eyepiece for viewing.

Does a compound microscope have one lens?

A compound microscope has two lenses: the objective lens and the eyepiece lens. The objective lens is used to gather light from the specimen and create a magnified image, which is further magnified by the eyepiece lens for viewing.

What type of microscope uses electromagnets to focus an illuminating beam instead of glass lens?

An electron microscope uses electromagnets to focus an illuminating beam of electrons instead of glass lenses. This type of microscope offers higher magnification and resolution compared to traditional light microscopes.

What is a type of electron microscope?

One type of electron microscope is a transmission electron microscope (TEM). This microscope passes a beam of electrons through a thin specimen to create an image. Another type is a scanning electron microscope (SEM), which scans a focused beam of electrons across the surface of a specimen to create a detailed image.

What are Adjustment knobs?

Adjustment knobs are controls on various devices that allow users to make fine adjustments or changes to settings such as focus, brightness, contrast, or volume. They are typically found on cameras, microscopes, telescopes, and other equipment that requires precision adjustments. Turning these knobs enables users to optimize the performance or appearance of the device.

What color is the cytoplasm of an onion cell?

When observing an onion cell under the microscope, it appear to be long an oval in shape. Staining the cell will make the chromosomes attain a deep purple color.

What is prism in microscope?

A prism in a microscope is an optical element used to bend and direct light within the microscope. It is commonly found in compound microscopes to help split light into different wavelengths or correct for color distortion. Prisms help improve the quality of the image seen through the microscope by optimizing light transmission and reducing aberrations.

What kind what microscopes would be better to see a virus. your options are compound light microscope Transmission Eltron Microscope Scanning Electron Microscope?

To see a virus, a Transmission Electron Microscope (TEM) or a Scanning Electron Microscope (SEM) would be better than a compound light microscope. TEM uses a beam of electrons to create an image with high resolution and can visualize viral structures inside cells. SEM provides detailed 3D images of virus surface morphology at a higher magnification than a compound light microscope.

What is meant by resolving power of the microscope?

The resolving power of a microscope refers to its ability to distinguish between two closely spaced objects as separate entities. It is determined by the numerical aperture of the microscope's lens and the wavelength of light used for imaging. A microscope with high resolving power can distinguish small details and produce clear images with high sharpness and contrast.

Ziehl-Neelson staining procedures is used for detection?

Ziehl-Neelsen staining is primarily used for the detection of acid-fast bacilli, including Mycobacterium tuberculosis, the causative agent of tuberculosis. The staining procedure involves using a red dye called carbol fuchsin, which helps identify the presence of these bacteria based on their ability to retain the dye despite washing with acid-alcohol. Additionally, Ziehl-Neelsen staining is commonly employed in diagnosing other mycobacterial infections besides tuberculosis, such as leprosy.

What is used to focus an electron microscope?

Electron microscopes use electromagnetic lenses to focus the electron beam. These lenses are designed to manipulate the path of electrons using magnetic fields, allowing for high resolution imaging of specimens.

Differentiate comcound microscope to electron microscopes?

A compound microscope uses light to magnify and visualize samples, making it suitable for observing living cells or thick specimens. Electron microscopes use a beam of electrons to achieve higher magnification and resolution, allowing for the visualization of ultrastructural details in samples, but they are not suitable for observing living cells due to the sample preparation process.

When using a scanning probe microscope do you see atoms directly or only indirectly?

A scanning probe microscope allows you to visualize the atomic arrangement on a surface indirectly by measuring the interaction between a probe and the sample surface. It can provide high-resolution images that can reveal the positions of atoms on a surface, allowing researchers to study their structure and properties. However, the images produced are based on the probe-sample interactions rather than direct observation of individual atoms.

What part reflects the microscope light?

The mirror or a light source reflects the light onto the specimen placed on the stage of a microscope. The objective lens then focuses this light on the specimen, allowing for magnification and visualization.

What is fuel surcharge adjustment?

FSA is the additional fuel cost that was not collected from consumers by discoms in the previous years. "The monthly electricity bills of consumers that year did not cover the actual cost of fuel that distribution companies paid to generators to buy power. So, to make up for the loss that discoms suffered, sometimes it is allowed the DISCOMs to collect this money now,"

How is an image made and magnified with a microscope?

a droplet of water, on a leaf for example, will magnify the view of the leaf. A very light spray of water on the surface of your TV/monitor will reveal the colour phosphors.

VERY LIGHT SPRAY!

This process is caused by refraction of the light waves. In a light microscope this process is replicated by glass lenses.

Early use of microscope?

The first compound microscope was invented in the late 16th century, attributed to Hans Janssen and his son Zacharias in the Netherlands. This early microscope consisted of a tube with multiple lenses that allowed for an increased level of magnification. It paved the way for advancements in the field of microscopy and revolutionized our understanding of the microscopic world.

Why does a microscope have two lenses?

A microscope has two lenses to magnify the image of the specimen. The objective lens, close to the specimen, captures a magnified image, which is further magnified by the eyepiece lens to enable viewing. This dual-lens system provides higher magnification and resolution.

What is the purpose for the microscope?

Objective of a microscope is the element that gathers light from the object being observed and focuses light rays to produce a real image. Objectives can be single lenses or mirrors, or combination of several optical elements. They are used in microscopes, telescopes, cameras, slide projectors, CD players and many other optical instruments. Objectives are also called object lenses, object glasses, or objective glasses.

How to describe the feature of the microscope that makes it possible to move among the objective lenses with only minor focusing?

The feature on a microscope that allows you to switch between objective lenses with minimal focusing is called parfocal. This means that when you change from one objective lens to another, the specimen remains in focus and only requires minor adjustments to fine-tune the focus.

What is the principle of isotatic adjustment?

Isostatic adjustment is the process by which the Earth's crust responds to changes in surface loads by rising or sinking to achieve equilibrium. It involves vertical movement of the crust to balance the weight of material on the surface, such as ice sheets or mountain ranges, in order to maintain gravitational equilibrium.

Does heat magnify a smell?

Heat can intensify a smell by causing the molecules in the scent to move faster and reach your nose more easily. This effect is often noticeable when warming up food or beverages, making the aroma more potent.