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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

Which kind of microscope magnifies specimen to produce the virtual image of the specimen?

A virtual image of a specimen is produced by an optical microscope, which magnifies the specimen using lenses to create an enlarged view that is visible to the human eye. This type of microscope does not require direct contact between the specimen and the lens, hence producing a virtual image.

What is the price of the Atomic Force Microscope?

The current total price of a table top Atomic Force Microscope is approximately $26,670.00 (USD). The larger models of the Atomic Force Microscope have a price range of $30,000.00 without accessories and add-ons.

What is the total magnification for STM microscopes?

The total magnification for STM microscopes typically ranges from 10,000x to 100,000x. This high magnification allows for detailed imaging of atomic and molecular structures on surfaces.

What is inter source adjustment?

Inter-source adjustment is a statistical technique used in meta-analysis to account for variations in measurement scales or methods across multiple studies. It involves transforming effect sizes from different sources to a common metric for pooling the data and synthesizing the results. This adjustment helps in reducing bias and makes it possible to combine findings from diverse studies into a unified analysis.

What happens to the image seen in a monocular microscopes when the slide is moved downwards?

When the slide is moved downwards in a monocular microscope, the image moves in the opposite direction, appearing to move upwards in the field of view. This occurs due to the physics of the lenses within the microscope that invert and reverse the image.

What is the working mechanism of electron microscope?

Transmission: A beam of electrons pass a sample and is absorbed in electron-dense structures, which look black in an image.

Scanning: samples are coated with metal and scanned with a beam of electrons.

How objects look different when viewed through the light microscope?

Objects appear magnified and clearer when viewed through a light microscope due to the lenses that focus light to create an enlarged image. The microscope allows for detailed examination of the specimen's structure and features not visible to the naked eye. The use of specialized stains or dyes can enhance contrast and visibility of specific parts of the object being observed.

What is located on the side of the frameused to adjust the focus of the frame of the microscope?

The focus adjustment knob is located on the side of the frame to adjust the focus of the microscope. By turning this knob, you can move the stage up and down to bring the specimen into focus.

What is the first adjusting knob to be used in a microscope?

The coarse adjustment knob is typically the first knob to be used when focusing a microscope, as it moves the objective lenses closer to or farther away from the specimen to bring it into view.

Who found a way of using a comparison microscope to improve this technique to better match bullets?

Calvin Goddard, an American forensic scientist, is credited with significantly improving ballistics analysis by using a comparison microscope to compare bullets. He developed a method where bullets could be examined side by side under the microscope, leading to more accurate matching of bullets to specific firearms.

Which mirror is used to reflect the light in microscope?

The mirror used to reflect light in a microscope is called the concave mirror. This mirror is located beneath the stage of the microscope and directs light up through the specimen for viewing.

Does an electron microscope need electricity?

Yes, electron microscopes require electricity to operate. They use electrons to generate images at a very high resolution, which requires a high voltage electrical source to accelerate the electrons. Without electricity, an electron microscope would not be able to function properly.

How is the Asahi microscope used?

The Asahi microscope is typically used for high-resolution imaging of very small objects, such as cells or nanoparticles. Users can view the specimen under high magnification and analyze its structure and features with precision. The microscope is equipped with advanced optics and imaging capabilities to capture detailed information about the specimen being studied.

Can acetone be used to clean PE?

No, acetone should not be used to clean polyethylene (PE) as it can cause the material to degrade or dissolve. It is recommended to use mild soap and water or a cleaning agent specifically designed for use on PE surfaces.

How do you describe the specimen explain why you are using this kind of material in microscope?

The specimen is described using its physical characteristics such as size, shape, color, and texture. This information helps to identify and differentiate the specimen. Using this type of material in a microscope allows for detailed examination at the microscopic level, providing insights into the specimen's structure, composition, and behavior that are not visible to the naked eye.

How can a microscope determine if the specimen is a living thing?

In a microscope some microorganisms may be checked if they are living or not e.g. Euglena , Paramecium etc. can easily be checked but Bacteria can't be checked , there are other methods for checking them .

Why adjust the diaphragm on a microscope?

Adjusting the diaphragm on a microscope controls the amount of light passing through the specimen. By adjusting the diaphragm, you can improve the contrast and clarity of the image. It also helps in reducing glare and improving the overall quality of the microscopy image.

How is a magnifying lens similar to the first microscope invented?

Both a magnifying lens and the first microscope invented use lenses to magnify and enhance the appearance of small objects. They both rely on the principle of bending light to make objects appear larger than they are in reality.

What does compound microscopes have in different than electron microscopes?

Compound microscopes use visible light to magnify images up to 1000x, while electron microscopes use a beam of electrons to achieve much higher magnification (up to 1 million x). Electron microscopes offer higher resolution and can visualize structures at the cellular and molecular level, but they are more expensive and require specialized training to operate.

What is the preparation needed to view an object under a electron microscope?

Electron microscopes are very powerful tools for visualising biological samples. They enable scientists to view cells, tissues and small organisms in very great detail. However, these biological samples can't be viewed on electronmicroscopes whilst alive. Instead, the samples must undergo complex preparation steps to help them withstand the environment inside the microscope. The preparation process kills the tissue and can also cause changes in the sample's appearance.

Types of microscopes and their functions?

  1. Optical microscope: Uses visible light to produce a magnified image of a specimen.
  2. Electron microscope: Uses a beam of electrons to image the specimen at a much higher resolution compared to optical microscopes.
  3. Confocal microscope: Uses laser scanning to create a 3D image of the specimen with high resolution and contrast.

How can you prevent your slide from slipping off the stage?

You can use rubber pads or grips on the bottom of the slide to increase friction and prevent it from slipping off the stage. Additionally, make sure the slide is securely positioned and not at an angle that could cause it to shift. Adding a non-slip mat under the slide can also help keep it in place.

Why is the light necessary when using a microscope?

The light is necessary when you are using a microscope because if you don't have the light turned on, then the object or specimen you would like to examine won't be showing up. The light makes you have the capabiltiy to see what your object looks like under the microscope, and if your light isn't being used, then you will not see your object, probably only darkness!!! (Hope this helped)

What happens when you move a microscope slide to the right?

When you move a microscope slide to the right, the field of view under the objective lens shifts in the opposite direction, appearing to move to the left in the eyepiece. This movement helps you navigate the sample and focus on different areas for observation.

Function of the microscope stage?

The microscope stage is the platform where the specimen being observed is placed. Its main function is to hold the specimen steady and allow for precise positioning and movement so that specific areas can be viewed under the magnifying lenses of the microscope. The stage typically has controls for adjusting the position of the specimen to focus and examine it effectively.