Bohr's Principle of Complementarity
Bohr was 'one of the intellectual giants of early quantum theory. His ideas and his personality were enormously influential. During the twenties and thirties, the Bohr Institute in Copenhagen (which was financially supported by the Carlsberg Brewery) became a haven for scientists who were developing the new physics....
Thursday, July 25, 2019
De-Broglie's Law
De-Broglie's Law
If electromagnetic radiation consists of photons-localized clumps of energy-how can we explain phenomena such as diffraction and interference? If not, then why did Compton have to use classical collision theory to explain the scattering of x rays by metals?...
Wednesday, July 24, 2019
interference experiment of electrons
interference experiment of electrons
Our strategy in the double-slit experiment is to send electrons through a double-slit diaphragm and see how the intensity measured by the detector differs from the interference pattern formed by light. To implement this strategy, we must...
Understanding interference in classical physics
Understanding interference in classical physics
The theory of diffraction is the foundation for study of the double-slit interference experiment. When first performed in 1800 by Thomas Young (1773-1829), this experiment was considered definitive proof of the wave nature...
Tuesday, July 23, 2019
Understanding diffraction in classical physics
Understanding diffraction in classical physics
Diffraction, which was first observed by Leonardo da Vinci, is often considered to be the signature of a wave. Diffraction occurs when ripples in a pond encounter a pair of logs that are close together, when light passes through...
Monday, July 22, 2019
Basic theorems of limits
Basic theorems of limits
1-The limit of the algebraic sum of a finite number of variables is equal to the sum of their limits.
For the sake of exactness let us take the algebraic sum x-y+z of three simultaneously varying magnitudes. We suppose that x, y and z tend respectively...
