Back to Top Electromagnetic waves characteristics are similar to transverse waves. If the particles at a medium vibrate at right angles to the direction of the propagation of the energy then that wave is called as transverse wave. Such waves are produced on the surface of water, in musical instruments. If the stretched strings, the energy the energy travels outwards and the particle of the medium vibrates up and down.
Movie Gallery Electromagnetic Radiation Visible light is a complex phenomenon that is classically explained with a simple model based on propagating rays and wavefronts, a concept first proposed in the late s by Dutch physicist Christiaan Huygens. Electromagnetic radiation, the larger family of wave-like phenomena to which visible light belongs also known as radiant energyis the primary vehicle transporting energy through the vast reaches of the universe.
The mechanisms by which visible light is emitted or absorbed by substances, and how it predictably reacts under varying conditions as it travels through space and the atmosphere, form the basis of the existence of color in our universe.
The Nature of Electromagnetic Radiation - Coined by Sir James Clerk Maxwell, the term electromagnetic radiation is derived from the characteristic electric and magnetic properties common to all forms of this wave-like energy, as manifested by the generation of both electrical and magnetic oscillating fields as the waves propagate through space.
Visible light represents only a small portion of the entire spectrum of electromagnetic radiation, which extends from high-frequency cosmic and gamma rays through X-rays, ultraviolet light, infrared radiation, and microwaves, down to very low frequency long-wavelength radio waves.
James Clerk Maxwell - James Clerk Maxwell was one of the greatest scientists of the nineteenth century. He is best known for the formulation of the theory of electromagnetism and in making the connection between light and electromagnetic waves.
He also made significant contributions in the areas of physics, mathematics, astronomy and engineering. He considered by many as the father of modern physics. William Herschel - Friedrich William Herschel was an eighteenth century German astronomer who is credited with the discovery of the planet Uranus.
In addition, Herschel measured the heights of about one hundred mountains on the moon, carefully recorded the data, and prepared papers that were presented to the Royal Society of London.
In the late s, he began to build and sell telescopes.
|Radio wave - Wikipedia||Introduction to electromagnetic waves Electromagnetic radiation is one of the many ways that energy travels through space.|
|Propagation of light||Electrons in atoms The quantum theory was used to show how the wavelike behavior of electrons leads to quantized energy states when the electrons are bound or trapped.|
|Introduction to electromagnetic waves||In the s and before, experiments seemed to indicate that light was composed of particles.|
Herschel continued making observations and cataloging his discoveries until his death in at age Christiaan Huygens - Christiaan Huygens was a brilliant Dutch mathematician, physicist, and astronomer who lived during the seventeenth century, a period sometimes referred to as the Scientific Revolution.
Huygens, a particularly gifted scientist, is best known for his work on the theories of centrifugal force, the wave theory of light, and the pendulum clock. His theories neatly explained the laws of refraction, diffraction, interference, and reflection, and Huygens went on to make major advances in the theories concerning the phenomena of double refraction birefringence and polarization of light.
Interactive Tutorials Electromagnetic Radiation - This interactive tutorial explores the classical representation of an electromagnetic wave as a sine function, and enables the visitor to vary amplitude and wavelength to demonstrate how this function appears in three dimensions.
Basic Electromagnetic Wave Properties - Electromagnetic radiation is characterized by a broad range of wavelengths and frequencies, each associated with a specific intensity or amplitude and quantity of energy.
This interactive tutorial explores the relationship between frequency, wavelength, and energy, and enables the visitor to adjust the intensity of the radiation and to set the wave into motion.
Electromagnetic Wave Propagation - Electromagnetic waves can be generated by a variety of methods, such as a discharging spark or by an oscillating molecular dipole. Visible light is a commonly studied form of electromagnetic radiation, and exhibits oscillating electric and magnetic fields whose amplitudes and directions are represented by vectors that undulate in phase as sinusoidal waves in two mutually perpendicular orthogonal planes.
This tutorial explores propagation of a virtual electromagnetic wave and considers the orientation of the magnetic and electric field vectors. Electron Excitation and Emission - Electrons can absorb energy from external sources, such as lasers, arc-discharge lamps, and tungsten-halogen bulbs, and be promoted to higher energy levels.
This tutorial explores how photon energy is absorbed by an electron to elevate it into a higher energy level and how the energy can subsequently be released, in the form of a lower energy photon, when the electron falls back to the original ground state. Jablonski Diagram - Fluorescence activity can be schematically illustrated with the classical Jablonski diagram, first proposed by Professor Alexander Jablonski in to describe absorption and emission of light.Electromagnetic wave definition is - one of the waves that are propagated by simultaneous periodic variations of electric and magnetic field intensity and that include radio waves, infrared, visible light, ultraviolet, X-rays, and gamma rays.
Electromagnetic radiation, the larger family of wave-like phenomena to which visible light belongs (also known as radiant energy), is the primary vehicle transporting energy through the vast reaches of the universe.
The mechanisms by which visible light is emitted or absorbed by substances, and how it predictably reacts under varying conditions as it .
Explain the difference between a continuous spectrum and a line spectrum. Explain the difference between an emission and an absorption spectrum. Use the concept of quantized energy states to explain atomic line spectra.
Electron waves are standing matter waves; Standing matter waves have quantized energies, like the Bohr atom. 4k audio spectrum simulation on white background use for music and computer calculating concept hd Group of happy girls running and playing in water at the beach on sunset.
Beauty and joyful teenager friends having fun, dancing, spraying over summer sunset. The electromagnetic spectrum.
Photo: Diagram of electromagnetic spectrum courtesy of NASA.. All the different kinds of electromagnetic radiation are essentially the same "stuff" as light: they're forms of energy that travel in straight lines, at the speed of light (, km or , miles per second), when electrical and magnetic vibrations wiggle from side to side.
Watch video · Now even if you ignore this particle aspect of light, if you just look at the wave aspect of the light, it's still fascinating. Because most waves require a medium to travel through. So for example, if I think about how sound travels through air-- so let me draw a bunch of air particles.