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Category Archives: Quantum Physics
Photon and its properties
In this article, we will discuss about the photon and its properties: A photon is basically a basic particle which carries with itself electromagnetic energy. The light coming from sun has different wavelengths or energy and on the basis of … Continue reading
Posted in Quantum Physics
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Application of Schrodinger wave equation: Particle in a box
Consider one dimensional closed box of width L. A particle of mass ‘m’ is moving in a onedimensional region along Xaxis specified by the limits x=0 and x=L as shown in fig. The potential energy of particle inside the box … Continue reading
Posted in Quantum Physics
Tagged Application of Schrodinger wave equation: infinite square well potential, eigen value of particle in a box, particle in a box derivation wave equation and energy value, what is energy value of a particle in a box, what is the wave function of particle in a box
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Wave function and its physical significance
WAVE FUNCTION If there is a wave associated with a particle, then there must be a function to represent it. This function is called wave function. Wave function is defined as that quantity whose variations make up matter waves. It … Continue reading
Time Independent Schrodinger Wave Equation
As discussed in the article of time dependent Schrodinger wave equation: V=A exp[i/Ћ(Etpx] = A exp(i/Ћ Et) exp(i/Ћ) Ψ=ψ’ exp(iEt/Ћ) (1) Where Ћ = h/2π So, ψ is a product of a time dependent function exp(i/Ћ Et) and a position … Continue reading
TIME DEPENDENT SCHRODINGER WAVE EQUATION
In quantum mechanics, the wave function ψ corresponds to the variable y of wave motion. We know that the wave function for a particle is given by Ψ(x,t)=A exp[i(ωtkx)] Put ω=2πv and K=2π/h Ψ(x,t)=A exp[ i(2πvt2π/h x)] (1) If E= … Continue reading
Origin of Quantum Physics
Broadly, there are two types of mechanics called classical mechanics and quantum mechanics. Classical mechanics or physics explained successfully motion of the objects which can either be observed directly or can be made observable by instruments like microscope. But, the … Continue reading
Applications of the Heisenberg Uncertainty Principle: The Radius of Bohr’s First Orbit
In one of my earlier articles, I have discussed the one the applications of the Heisenberg uncertainty principle that is nonexistence of electron in the nucleus. Let us discuss today the one more application of the Heisenberg uncertainty principle that … Continue reading
de Broglie concept of matter waves: dual nature of matter
MATTER WAVES : dEBROGLIE CONCEPT In 1924, Lewis deBroglie proposed that matter has dual characteristic just like radiation. His concept about the dual nature of matter was based on the following observations: (a) The whole universe is composed of matter … Continue reading
Posted in Quantum Physics
Tagged de Broglie concept of matter waves, de Broglie equation, de Broglie hypothesis, de Broglie wavelength derivation, de Broglie wavelength equation for material particle, de Broglie wavelength relation, de Broglie wavlength, dEBroglie wavelength for particle in gaseous state, what is dEBroglie wavelength for an accelerated electron, why matter has dual nature
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Applications of Heisenberg’s Uncertainty principle: Nonexistence of electrons in the nucleus
Applications of Heisenberg Uncertainty principle The Heisenberg uncertainty principle based on quantum physics explains a number of facts which could not be explained by classical physics. One of the applications is to prove that electron can not exist inside the … Continue reading
Heisenberg uncertainty principle
Statement: According to Heisenberg uncertainty principle, it is impossible to measure the exact position and momentum of a particle simultaneously within the wave packet. We know, group velocity of the wave packet is given by vg =∆ω/∆k Where ω is … Continue reading
Posted in Quantum Physics
Tagged definition Heisenberg uncertainty principle, derivation Heisenberg uncertainty principle, equation Heisenberg uncertainty principle, equation Heisenberg’s uncertainty principle, expression Heisenberg’s uncertainty principle, Heisenberg uncertainty principle of position and momentum, Heisenberg uncertainty principle proof, statement Heisenberg uncertainty principle, Why there is uncertainty in position and momentum?
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