Wave-particle duality, possession by physical entities (such as light and electrons) of both wavelike and particle-like characteristics. 1hυ, 2hυ, 3hυ etc. Despite the odd nature of photons, scientists prior to Einstein had long suspected that the fundamental particle of electromagnetic radiation shared properties with our more macroscopic particles. We understand the conditions under which EM radiation behaves as a wave diffraction experiment. A wave consist of crests and troughs. Radiations are considered to be transmitted by wave motion. de Broglie in 1924 proposed that matter, like radiation, should also exhibit dual behaviour i.e., both particle and wave like properties. These changing fields form electromagnetic waves. Light and other electromagnetic radiations have dual nature viz: the particle nature and the wave nature. Electromagnetic nature of radiations is explained by James Maxwell (1870). Resources: Notes: Nature of Light: Light Energy: Light is energy. The energy of a photon E and the frequency of the electromagnetic radiation associated with it are related in the following way: $E=h \upsilon \label{2}$ where h is a universal constant of nature called Planck’s constant with the value 6.6262 × 10 –34 J s. The application of Equation $$\ref{2}$$ is best shown by an example. The relation is E = hυ, Where E is energy of photon, h is Planck’s constant and υ is the frequency of the radiation. Electromagnetic Radiation 1. scienceisbeauty.tumblr.com Electromagnetic Radiation Sarah Jones 2. Electromagnetic radiation can be defined as a form of energy that is produced by the movement of electrically charged particles traveling through a matter or vacuum or by oscillating magnetic and electric disturbance. Electricity can be static, like the energy that can make your hair stand on end. The distance between two consecutive troughs or consecutive crests is called as the wavelength (λ). It can be emitted as whole number multiple of quantum I.e. VHS: The Dual Nature of Electromagnetic Radiation - Chapter Summary. This means that just as the photon has momentum as well as wavelength, electrons should also have momentum as well as wavelength. These fields are transmitted in the forms of waves called electromagnetic waves or electromagnetic radiation. Electromagnetic nature of radiations is explained by James Maxwell (1870). Depending on the experiment, we find that light behaves either as a wave or as a stream of particles. In this live Grade 12 Physical Sciences show we take a look at the Dual Nature of Electromagnetic Radiation. Einstein proposed that electromagnetic radiation has a wave-particle nature, that the energy of a quantum, or photon, depends on the frequency of the radiation, and that the energy of the photon is given by the formula Ephoton=hv. Energy less than quantum can never be absorbed or emitted. This means that electromagnetic waves can travel not only through air and solid materials, but also through the vacuum … The only way to resolve the dilemma was to accept the idea that light possesses both particle and wave-like properties, i.e., light has dual behaviour. where m is the mass of the particle, v its velocity and p its momentum. Its important postulates are. The second basic type of radiation is electromagnetic radiation. Wave–particle duality is the concept in quantum mechanics that every particle or quantum entity may be described as either a particle or a wave.It expresses the inability of the classical concepts "particle" or "wave" to fully describe the behaviour of quantum-scale objects. It includes radio waves, microwaves, infrared, (visible) light, ultraviolet, X-rays, and gamma rays. unit is m. and practical unit is angstrom (Å). After all, many of us humans like to have one right answer. Bohr did not explain why, he just proposed a new law of nature. Dover Road and Pretoria Avenue, Randburg, South Africa. As Albert Einstein wrote:. Describe the dual-nature of an electromagnetic wave. Particle nature could explain the black body radiation and photoelectric effect satisfactorily but on the other hand, it was not consistent with the known wave behaviour of light which could account for the phenomena of interference and diffraction. The photoelectric effect could be explained considering that radiations consist of small packets of energy called quanta. Dual nature of EM waves - law EM radiation is so-named because it has electric and magnetic fields that simultaneously oscillate in planes mutually perpendicular to each other and to the direction of propagation through space. In this live Grade 12 Physical Sciences show we take a look at the Dual Nature of Electromagnetic Radiation. Dual Nature of Electromagnetic Waves An electromagnetic wave is an energy wave that has both a magnetic field and an electrical field. 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