How does magnification occur in an electron microscope?
Light is changed into electrons by a convex lens.
An electron beam makes the object become larger.
Light is reflected by an electron beam.
An electron beam creates an image.
An electron microscope utilizes an electron beam to create magnified images of a sample. The process of magnification occurs through the use of electromagnetic lenses, which are made up of magnetic fields. The electron beam passes through these lenses, which vary in strength and focal length, causing the electrons to bend and focus onto the sample.
As the electrons interact with the atoms in the sample, various interactions occur, such as scattering and absorption. These interactions result in the emission of secondary electrons, backscattered electrons, and transmitted electrons, which are then captured by detectors.
By manipulating the strength and focal length of the electromagnetic lenses, the electron microscope can control the magnification level. The resulting image is then displayed and analyzed on a screen or captured digitally for further examination.