Electromagnetic Waves Physics, Theory, Types and Examples


You know my friend, besides grouping based on the direction vibration and wave propagation, it turns out there are other groupings also loh. Based on what? Based on the medium wave perambantannya. Based on this classification, the wave can be distinguished: menkanik waves and electromagnetic waves.

Mechanical wave is a wave that requires a medium in the propagation of the waves, while electromagnetic waves are waves that do not require the propagation medium. Electromagnetic radiation is a combination of electric and magnetic fields oscillate and propagate through space and carry energy from one place to another. Visible light is a form of electromagnetic radiation. The theoretical study of electromagnetic radiation called electrodynamics, a sub-field of electromagnetism.

Nature of Electromagnetic Waves and Spectrum

As mechanical waves, electromagnetic waves also possess a more or less similar. The nature of electromagnetic waves, among others, can propagate in a vacuum, a transverse wave, having reflectivity (reflection), having refraction (refraction), interference, having bending (diffraction), and the direction is not determined by the knock-electric field or fields magnet.
Light, radio waves, X-rays, and gamma rays are examples of electromagnetic waves. Various types of electromagnetic waves are different only in frequency and wavelength. Relations wave propagation velocity, frequency and wavelength is expressed as follows.

Differences interval / distance wavelength and frequency are arranged in tabular wavelength and frequency respectively called the electromagnetic wave spectrum. Radio waves have the lowest frequency, while the gamma rays have the highest frequency. Note the following picture!

Examples and benefits of an electromagnetic wave

Any kind of example of electromagnetic waves. For example: Sun light, cell phone signals, radio waves, gamma rays, infrared rays.
Keep what ya wrote benefit of electromagnetic waves. That is: as a tool / delivery of communication such as mobile phone signals, X-rays can be used for treatment, infrared light can be used for data communication, gamma rays can be used for logging in the petroleum pengoboran