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Electromagnetic Spectrum

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The electromagnetic spectrum is the distribution of electromagnetic radiation according to energy or frequency or wavelength:

Electromagnetic Radiation - Energy, Frequency and Wavelength
TypeWavelength
(m)
Frequency
(Hz)
Energy
(eV)*
Electricity 5 105 50 - 60
Long wave, television 105 - 102 < 3 109
Short wave, radio 102 - 10-1 108 - 3 109 < 10-5
Microwaves 10-1 - 10-3 3 109 - 3 1012 10-5 - 10-2
Infrared light 10-3 - 7 10-7 3 1012 - 3 1014 10-2 - 2
Visible light 7 10-7 - 4 10-7 4.3 1014 - 7.5 1014 2 - 3
Ultraviolet light 4 10-7 - 10-9 7.5 1014 - 3 1017 3 - 103
X-rays 10-9 - 10-11 3 1017 - 3 1019 103 - 105
Gamma rays 10-11 - 10-13 3 1019 - 1021 > 105
Cosmic rays 10-13 - 10-20 1021 - 1025

* eV = electron-volts

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Related Topics

Basics

The SI-system, unit converters, physical constants, drawing scales and more.

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Absorbed Solar Radiation

Solar radiation absorbed by various materials.

Bands vs. Frequencys and Wavelengths

Bands and their ranges of frequencies and wavelengths.

Color Mixing Theory

Subtractive and additive color mixing.

Heat Gain from Lights

Heat contributed by lights may have major impact on air-condition systems.

Lights vs. Power Installation

Lights vs. power installations in common types of buildings and rooms.

Luminous Efficacy

The visible light produced by light sources.

Materials - Light Reflecting Factors

Light reflecting factor materials.

Microwave Heating

Heating with microwaves.

Optical Distance Law

Geometric dilution of light vs. distance.

Radiation Heat Transfer

Heat transfer due to emission of electromagnetic waves is known as thermal radiation.

Refractive Index common Liquids, Solids and Gases

Some common fluids and their refractive index.

Relative Permittivity - the Dielectric Constant

Common materials and their relative permittivity.

Sound - Frequency, Wavelength and Octave

An introduction to the nature of sound with frequencies, wave-lengths and octaves.

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