The dual nature of radiation basically means that light travels in the form of both, waves and matter. Later on, it was experimentally found out that matter does possess the properties of a wave. I can't seem to understand the dual nature of matter completely. Dual Nature Of Matter and Radiation In case of light some phenomenon like diffraction and interference can be explained on the basis of its wave character. Hence it was concluded that matter has dual nature .i.e.both particle as … Physicswallah Assignment. The notes are prepared by best faculties across India. It explains wave behaviour as a scattering with wave appearance as the particle’s expression is subjected over to a guiding equation or quantum potential. As such Max Planck put forward a theory called Planck’s Quantum Theory to explain these radiations. Lect 03: Wave Nature of Matter- De Broglie hypothesis. However, the certain other phenomenon such as black body radiation and photoelectric effect can be explained only on the basis of its particle nature. Dual Nature of Radiation and Matter . Reasoning that radiation and matter should be symmetrical in nature, Louis Victor de Broglie attributed a wave-like character to matter (material particles). Later, it was found experimentally that matter does possess the properties of a wave. DUAL NATURE OFRADIATION AND MATTER Lect. Dual Nature of Matter Lewis de-Broglie proposed the dual nature of the matter in 1924 and stated that just like radiation, matter also has dual characteristics. It is referred to as Photon in case of Light. Dual Nature of Matter. Dual Nature of Radiation and Matter Class 12 Notes Chapter 11. Schrodinger time independent wave equation derivation, Difference Between Stress and Strain in Tabular Form. Cut-off Potential: The minimum negative or retarding potential V0 given to a plate for which photoelectric current becomes zero is called Cut-off or Stopping Potential. Board notes offered by thinkIIT is helpful in securing good marks in class 12. According to Neil Bohr “The wave and particle aspects of quantum entity are both necessary for a complete description.However the two aspects cannot be revealed simultaneously in a single experiment.The aspect which is revealed is determined by nature of experiment being done. For example we observe the wave property in diffraction experiment but not the particle property.Also we observe the particle property in compton effect,but not the wave property.Therefore it is not possible to perform a single experiment in which the electron will behaves as a particle and wave. NEET Physics Dual Nature of Matter and Radiation Multiple Choice Questions make you feel confident in answering the question in the exam & increases your scores to high. Work Function: the minimum energy that is required to eject an electron from a metal surface. The above-said process takes place in whole-number multiples of quantum as hf, 2hf, 3hf……nhfs; where n is a positive integer. This concept further helps to modify the inability of the classical mechanic’s approach or theories to fully describe the behaviour of the matter. Download Offline Apps and Solutions based on updated NCERT Books for 2020-21. Detector: It is used to capture the scattered electrons from the Ni Crystal. Lect 01: Photoelectric Effect-01. However, the certain other phenomenon such as black body radiation and photoelectric effect can be explained only on the basis of its particle nature. Electron Gun: It is a Tungsten filament that emits electrons via thermionic emission. The emitted electrons are called photoelectrons and the current so produced is called photoelectric current. Effect of Potential on Photoelectric Current is that it increases with increase in Potential applied to the collector for a fixed frequency and intensity of incident light, and finally attains maximum current termed as Saturation Current. Further, when the electrons gain as much sufficient energy required, they will escape out of the metal surface into the surrounding space. The maximum kinetic energy of photoelectrons above a threshold frequency depends upon the frequency of incident light. Threshold Wavelength: The maximum wavelength of light that can eject a photoelectron from the surface of a metal. Lect 01: Photoelectric Effect-01. E=hf. are associated with it and when it is in the state of rest then it shows particle properties. The dual nature of matter is quite apparent in these two equations (equations (1) & (2)). Read More: Heisenberg’s Uncertainty Principle. In modern physics, the double-slit experiment is a demonstration that light and matter can display characteristics of both classically defined waves and particles; moreover, it displays the fundamentally probabilistic nature of quantum mechanical phenomena. Thermionic Emission: Required thermal energy is provided to the free electrons by suitably heating it so as to enable them to come out of the metal. These video classes have been designed to suit the curriculum of CBSE Class 12 students. Our mental views of wave and particles are drawn from familiarity with very large scale objects such as tennis balls and ocean waves.Like paul Davies ,physicist and science writer it is impossible to visualize a wave particle so do not try what then are we to do? Bernoulli equation derivation with examples and applications, Continuity equation derivation in fluid mechanics with applications, Newton’s law of universal gravitation formula, Newton’s First law of Motion Examples in Our Daily Life, Newton’s Second Law Definition and Formula, Newton’s Third Law of Motion Examples in Daily Life, Newton’s three laws of motion with examples and applications, Ampere’s law and its applications in daily life, Formula for ohm’s law with example and problems. Thus, the deflections and scattering of electrons by the medium are prevented. ORIGIN OF THEORY The idea of duality originated in a debate over the nature of light and matter that dates back to the 17th century, when competing theories of light were proposed by Christian Huygens and Isaac Newton: light was thought either to consist of waves … , which is also called as Bohmian Mechanics considers the wave nature of Radiation and matter waves or waves... 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