by admin | Jun 3, 2015 | sem1
Properties of Matter waves All matter can exhibit wave-like behaviour. For example, a beam of electrons can be diffracted just like a beam of light or a water wave. Matter waves are a central part of the theory of quantum mechanics, an example of wave-particle...
by admin | Jun 3, 2015 | sem1
Physical significance of wave function A wave function is a mathematical tool used in quantum mechanics to describe any physical system. It is a function from a space that maps the possible states of the system into the complex numbers. The laws of quantum mechanics...
by admin | Jun 3, 2015 | sem1
Electron Microscope The electron microscopes is a type of microscope that uses a beam of electrons to create an image of the specimen. It is capable of much higher magnifications and has a greater resolving power than a light microscope, allowing it to see much...
by admin | Jun 3, 2015 | sem1
Transmission Electron Microscopy The Concept of Resolution The smallest distance between two points that we can resolve by our eyes is about 0.1-0.2 mm, depending on how good our eyes are. This distance is the resolution or resolving power of our eyes. The instrument...
by admin | Jun 3, 2015 | sem1
Scanning Electron Microscopy A scanning electron microscope (SEM) scans a focused electron beam over a surface to create an image. The electrons in the beam interact with the sample, producing various signals that can be used to obtain information about the surface...
by admin | Jun 3, 2015 | sem1
G.P Thomson Experiment After the experiments on diffraction of electrons by C. J. Davisson and L. H. Germer, G. P. Thomson, the son of J. J. Thomson, also replicated the experiment on electron diffraction in 1927. Electrons from an electron source were accelerated...
