What is an Electromagnetic waves?
Hello friends,In this article I am going to show you,what is an electromagnetic waves and their characteristics - Electromagnetic wave may be defined as the electromagnetic waves consist of sinusoidally time varying electric and magnetic fields acting at right angle to each other as well as at right angle to the direction of propagation of waves.
What is the Characteristics of electromagnetic waves?
Electromagnetic waves propagate in the form of varying electronic and magnetic field such that the two fields perpendicular to each other and also to the direction of propagation of the waves
All the electromagnetic waves are transverse in nature.
Electromagnetic waves do not require any material medium for their propagation.
Electromagnetic waves table with the velocity of lights.
Electromagnetic waves produced by accelerated charge .
The electromagnetic waves obey the principle of superposition.
The energy electromagnetic wave is divided equally between the electric field and magnetic field vector.
Energy transported by electromagnetic wave per second per unit area is represented by a vector quantity is called poynting vector.
The Gamma ray these waves range from 3 into paint power 19 Tu Ubuntu paint power xx Hz Gamma ray are highest energy radiation and they are mainly emitted by Radioactive
X-Rays have frequencies in the range of 10^16 To 310^18 Hz.
Ultraviolet Ray these are part of solar spectrum they have the frequency range of 8 10^11 to 810^16 Hz.
Visible light the frequency of visible light range from 410^14 To 810^14 Hz.It forms a very narrow part of the electromagnetic spectrum.
Infrared Ray infrared Ray are heat radiation does all hot bodies are the source of infrared rays about 60% of the solar radiation is Infrared rays in the nature the frequency range from 310^11 to 4 *10^15 Hz.
Microwaves, these waves are produced by oscillating hello electronic circuit the frequency of microwaves lies between 10^ 8 Hz to 4 *10^11 Hz.Microwaves are used in radar and other communication system.
Radio -Radio waves are also produced by oscillating electronic circuit their frequency range from 3 10^3 to 310^11 Hz.Radio waves are used as carrier waves In radio broadcasting and TV transmission .
Radiation in atmosphere-
The main source of electromagnetic radiation in the atmosphere is the sun the sun Sands electromagnetic waves of different wavelengths towards the Earth the major part of these wavelength is observed observed observed by the atmosphere but the visible light is weakly observed the most of the infrared radiation in observed bye the atmosphere and used to hit it.
The radiation from the sun also has ultraviolet radiation which is observed by the ozone layer in fact the Ozone Layer converts ultraviolet radiation to infrared rays which is used to hate the atmosphere and the earth surface.
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