Applications of uncertainty principle According to Heisenberg’s uncertainty principle it is impossible to determine precisely and simultaneously...
Quantum mechanics, Atomic and Molecular Physics
Phase velocity and Group velocity Phase velocity (Wave velocity) If a single monochromatic wave (wave of single...
Davisson Germer experiment This experiment provide the experimental confirmation of de Broglie hypothesis Experimental arrangement of Davisson...
de Broglie hypothesis According to de-Broglie, a wave is always associated with every moving particle. This wave...
Compton Effect (Quantum nature of light) Compton effect was discovered by A.H. Compton. When a beam of...
Photo electric effect Photo electric effect When light or E.M. radiation of suitable frequency or wavelength falls...
Introduction of quantum mechanics Newton’s law of mechanics are based on the elementary idea of physics or...
X-ray spectra X-rays X-rays were discovered by a German physicist Wihelm Conrad Roentgen in 1895 during the...
Characteristic X-ray spectrum Line spectrum The methods of producing characteristic X-rays are: In this method we use...