Definition of Electromagnetic Waves
Electromagnetic Waves: Definition, Nature, Kinds, and Formulas With Examples of Complete Problems - Do you know what is meant by Electromagnetic Waves ??? If you don't know it, you are absolutely right to visit gurupendukasi.com. Because on this occasion we will discuss about the understanding of Electromagnetic Waves, the nature of Electromagnetic Waves, kinds of Electromagnetic Waves, and the formula of Electromagnetic Waves along with examples of the complete problem. Therefore, let us consider the reviews below.
Definition of Electromagnetic Waves
Electromagnetic waves are waves that can propagate even though there is no medium. Electromagnetic energy propagates in waves with several characters that can be measured, namely: wavelength / wavelength, frequency, amplitude / amplitude, speed. Amplitude is the height of the wave, while the wavelength is the distance between two peaks. Frequency is the number of waves passing through a point in one unit of time.
The frequency depends on the speed of the wave climbed. Because the speed of electromagnetic energy is constant (the speed of light), the wavelength and frequency are inversely proportional. The longer the wave length, the lower the frequency, and the shorter the wave the higher the frequency.
Electromagnetic energy is emitted, or released, by all the ages in the universe at different levels. The higher the level of energy in an energy source, the lower the wavelength of the energy produced, and the higher the frequency. The different characteristics of wave energy are used to classify electromagnetic energy.
According to Christian Huygens (1629-1695), a Dutch scientist, stated that light is basically the same as sound and in the form of waves. The difference between light and sound only lies in the wavelength and frequency. In this theory Huygens considers that each point on a wavefront can be considered as a new wave source and the direction of this wavefront is always perpendicular to the corresponding wavefront.
In this Huygens theory the events of reflection, refraction, interference or diffraction of light can be explained precisely, but in Huygens theory there are difficulties in the explanation of the nature of light that propagates straight.
The theoretical basis for electromagnetic wave propagation was first explained in 1873 by James Clerk Maxwell in his paper at the Royal Society on the theory of electromagnetic field dynamics (English: A dynamical theory of the electromagnetic field), based on the results of his research work between 1861 and 1865.
James Clerk Maxwell's experiment (1831 - 1879) a British (Scottish) scientist stated that the speed of electromagnetic waves is equal to the speed of light propagation which is 3 × 108 m / s, therefore Maxwell concluded that light is an electromagnetic wave. Maxwell's conclusions are supported by:
A German scientist, Heinrich Rudolph Hertz (1857-1894) who proved that electromagnetic waves are tranverse waves. This is consistent with the fact that light can show symptoms of polarization.
The experiment of a Dutch scientist, Peter Zeeman (1852 - 1943) which stated that a very strong magnetic field can affect the light beam.
The Stark Experiment (1874 - 1957), a German scientist who revealed that a very strong electric field can affect light beams.