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- Light does not carry any charge itself, so it does not attract or repel charged particles like electrons. Instead light is an oscillating electric and magnetic field. If you take an electron and put it in a static electric field (e.g. around a Van de Graaff Generator) then the electron feels a force due to the field and will move.
Light is called an 'electromagnetic wave' for historical reasons* in the following sense: It turned out that the effects of visible light and other radiation can be calculated using Maxwell's equations, which are also used to model the behaviour of electrically charged particles. This was an instant of a successful unification and it hasn't ...
- electromagnetic radiation - Why is Light an EM wave ...
Spontaneous emission when an excited electron drops to a...
- electromagnetic radiation - Why do we think of light as a ...
In classical physics, light (visible and invisible) is...
- electromagnetic radiation - Why is Light an EM wave ...
Solution. Electromagnetic wave: In simple words, EM waves are waves that are formed when an electric field and a magnetic field vibrate together. Light is an electromagnetic field disturbance that propagates. Because light does not carry charge particles, it is not bent by electric or magnetic forces if some abstruse quantum effects are ignored.
- Overview
- Energy Forms
- Waves Types
- Maxwell's Equations
- Light Properties
- Radiation Descriptions
This article explains the different forms of energy, including stored or potential energy and kinetic energy. It also describes mechanical waves and electromagnetic waves as two important ways that energy is transported in the world around us. The article goes on to explain how electricity can be static or changing, forming electromagnetic waves wh...
Energy comes in many forms and can transform from one type to another, including stored or potential energy, kinetic energy, and electromagnetic radiation.
Mechanical waves are caused by a disturbance or vibration in matter while electromagnetic waves do not require a medium to propagate.
Scottish scientist James Clerk Maxwell developed the scientific theory of electromagnetic waves and Heinrich Hertz applied it to radio wave production and reception.
Light is made of photons that carry momentum, have no mass, travel at speed of light with both particle-like and wave-like properties; polarization measures alignment of electromagnetic field.
The terms light, electromagnetic waves, radiation all refer to same physical phenomenon described by frequency/wavelength/energy units for convenient use.
Nov 15, 2020 · Spontaneous emission when an excited electron drops to a lower energy state. Electromagnetic waves are defined as propagating waves consisting of orthogonal electric and magnetic fields satisfying Maxwells equations. By this definition, light IS an electromagnetic wave.
In classical physics, light (visible and invisible) is mathematically modeled as an electromagnetic wave, i.e., waves in the electric and magnetic fields. Electromagnetic waves are not limited to visible light.
May 13, 2023 · According to Huygens, an expanding sphere of light behaves as if each point on the wave front were a new source of radiation with the same frequency and phase as the preceding one. Because electromagnetic waves have fluctuating electric and magnetic fields, they are called electromagnetic waves.
Electromagnetic radiation is commonly referred to as "light", EM, EMR, or electromagnetic waves. [ 2 ] The position of an electromagnetic wave within the electromagnetic spectrum can be characterized by either its frequency of oscillation or its wavelength.
