0
Image formed by an electron microscope is sharp at the centre and blurred in the edges Why so?
Two reasons. Firstly, charges (electrons in this case) congregate near edges (of the sample) will repel incoming electrons more so than a flat surface. Secondly, electrons hitting an edge are more likely reflected at an off angle away from the return-electron detector, weakening the intensity of the image there.
==============================
What else can I help you with?
Where is the image formed in myopia?
In myopia, the image is formed in front of the retina, resulting in blurred vision. This occurs because the eyeball is too long or the cornea is too curved, causing light to focus in front of the retina instead of directly on it.
What image is formed in diffused reflection?
In diffused reflection, light is reflected in random directions by a rough or irregular surface. This results in the formation of a blurred or fuzzy image as the reflected light rays are scattered.
What happen to the image formed by a convex lens when half the lens is covered?
When half of a convex lens is covered, the image formed will be blurred and distorted. Light rays passing through the uncovered half of the lens will still converge to form a clear image, while the light rays blocked by the covered half will not contribute to the image formation. This can result in a partial or incomplete image being formed.
In a simple microscpe the object is placed at?
In a simple microscope, the object is placed at the object focus point where the image is formed. This image is then magnified by the eyepiece lens so it can be viewed by the observer.
What is formed when an atom loses an electron to another atom?
When an atom loses an electron to another atom, it forms a positively charged ion. This ion is called a cation because it has more protons than electrons. The loss of an electron results in an imbalance of positive and negative charges, leading to the formation of the cation.
What is a transmission electron microscope image formed by?
electrons passing through ultra thin samples of cells or tissues
Does a microscope form a real image?
Actually, the image doesn't form in the microscope. The image forms on your retinas. The microscope focuses light in such a way that it comes together correctly on your retinas.
What is a light microscope is formed by?
light
What are the characteristics of the image formed by simple microscope?
The image formed by a simple microscope is virtual, upright, and magnified. It is formed by the lens of the microscope and is viewed through the eyepiece. The image may appear slightly distorted towards the edges due to aberrations in the lens.
What compound is formed when the electron combines with the last electron?
atp
Is compound microscope and electron microscope same?
An optical microscope of any type uses the light passing through glass lenses. A compound microscope is simply one that uses 2 or more lenses in series. The image is formed normally either in the observer's eye or in a camera fitted to the instrument, or in certain types may be projected onto a screen. An electron microscope passes a finely-focussed beam of electrons through the sample, and creates the resulting image on a photographic film or electronic detectors. The instrument is used to resolve objects that are far smaller than are possible with optical microscopes.
What is the formula of the ion formed when potassium loses an electron?
When potassium loses an electron, it forms a cation with a charge of +1. The formula of the ion formed when potassium loses an electron is K+.
What kind of bond is formed formed when electron's are shared?
Covalent bonding.
Ion is formed when an atom loses an electron?
Yes, an ion is formed when an atom either loses or gains an electron, resulting in a net positive or negative charge, respectively. When an atom loses an electron, it becomes a positively charged ion, known as a cation.
What ion is formed when an atom loses an electron.?
A positive ion is formed when atoms lose electrons. When a cell gains an electron it becomes negative
How was the Blue Lake in Croatia formed?
They were formed by the heat coming up from the earths centre
What is the formula of the ion formed when sodium achieves a stable electron configuration?
Na+ is the formula of the ion formed when sodium achieves a stable electron configuration.
