ELECTROMAGNETIC RADIATION

Electromagnetic radiation is a combination of electric and magnetic fields that oscillate and propagate through space and carrying energy from one place to another. Visible light is one form of electromagnetic radiation. Theoretical studies of electromagnetic radiation called elektrodinamic, sub-field of electromagnetism. Electromagnetic waves discovered by Heinrich Hertz. Electromagnetic waves including transverse wave.

Any electric charge which has acceleration emit electromagnetic radiation. Left wire (or conductor as an antenna) conducts alternating current, electromagnetic radiation transmitted at the same frequency electrical current. Depending on the situation, electromagnetic waves can be like a wave or as particles. As a wave, characterized by the velocity (speed of light), wavelength, and frequency.

When considered as particles, they are known as photons, and each has the energy associated with the frequency indicated by the Planck relation E = H.ν, where E is the photon energy, H is Planck's constant - 6626 × 10 -34 J • s - and ν is the frequency of the wave. Einstein then update the formula becomes Ephoton = hν.

Which includes an electromagnetic wave:

Wave and wavelength( λ) :radio waves 1 mm, 10,000 km, Infrared 0,001-1 mm ,visible light 400-720 nm ,ultra violet 10-400nm, X rays 0,01-10 nm ,gamma rays 0,0001-0,1 nm ,cosmic rays do not include electromagnetic waves; smaller wavelength of 0.0001 nm. Light with large wavelength, the radio waves and infrared, has a frequency and level of lower energy. Beam with a wavelength smaller, ultra violet, x-rays or Roentgen rays, and gamma rays, has a frequency and energy level higher.