Modern Physics Concepts

   Saturday, August 15, 2020   

Modern Physics Concepts include all Definitions, Laws, Diagrams, Rules, Examples, Results etc.

Page 1

Energy of a photon | Example of energy of photon | Photoelectron | Application of photoelectric effect and Laser | Introduction to electron emission | Different methods of electron emission | Work function of common metals | Work function | Unit of work function | Thermionic Emmision | Factors affecting the rate of thermionic emission | Holography

Page 2

Explain spontaneous and stimulated emission | Threshold frequency | Describe a vacuum tube | Description of MASER and its application. | Hertz experiment in production of electromagnetic waves | Experimental study of photoelectric effect | Effect of potential on photoelectric current | Effect of intensity of light on photocurrent

Page 3

Lenard's experiment | Hertz's observation | Effect of potential on photocurrent | Dependence of intensity on photocurrent | Dependence of stopping potential of light on frequency of light | Dependence of photo current on frequency of light | Particle and wave nature of light | Problems on Millikan's drop experiment | Example on maximum velocity of photoelectron | Formula for maximum kinetic energy

Page 4

Introduction to maximum kinetic energy | Energy and momentum of photoelectrons | Photocell | Saturation current | Stopping potential | Factors affecting stopping potential | frequency vs potential | Einstein's photoelectric equation | Plot of stopping potential vs frequency of incident light

Page 5

Interception of the plot | Max Planck's Quantum Theory | Planck's constant using de-broglie equation | Einstein's photoelectric equation example | Photocurrent for a given intensity | De-broglie wavelength | Mass of a particle using de-Broglie wavelength | Heisenberg uncertainty principle | Uncertainty in position or momentum | Calculate the de broglie wavelength of an electron accelerated by a given potential

Page 6

Matter wave | Davisson and Germer experiment | Production of X rays | Explain the properties of X rays | Maximum frequency of X-rays | Intensity of X-rays | Decay of X-Rays in a medium | Understand the difference between continuous and characteristic X-rays

Page 7

Problem on variation of energy and wavelength of X-rays | Moseley's law and Bohr model | Laue Experiment | Compton wavelength | Change in wavelength due to Compton effect | Bragg's law and its application | The working and construction of Bragg's X-ray spectrometer