Electromagnetic Waves Principles - Assignment Example

Download file to see previous pages The waves are usually emitted and absorbed by charged particles. This is exactly how the radio waves are usually transmitted in wireless communication. The waves have got both the magnetic as well as the electric field oscillating perpendicularly to each other and also perpendicular to the direction of wave propagation. Radio waves are usually in the range of 10 kHz to 100 GHz. The smaller ranges of the radio waves are usually used in the deep space telecommunication. However, the frequency as well as the wavelength of a propagated electromagnetic wave depends on its source.
The electromagnetic spectrum is the range of all the types of the electromagnetic radiation. Radiation is the type of energy that travels while spreading out as it goes. Some electromagnetic spectrum is invisible to the naked eye. However, they all have the properties of frequency and wavelength. The frequency of the electromagnetic spectrum is defined as the number of cycles of a wave that passes a particular point in one second. It is measured in Hertz. On the other hand, the wavelength of the electromagnetic spectrum is defined as the distance from the peak of a particular wave to the next one. It is measured in meters. The two attributes are however inversely proportional to each other. The longer the wavelength of the electromagnetic spectrum is, the smaller the frequency of the spectrum and vice versa. However, the shorter the wavelength of the electromagnetic spectrum, the more energetic is the light.
The frequency and wavelength of the electromagnetic spectrum are related in a precise mathematical formula. The wavelength is normally expressed by the Greek letter lambda (λ). On the other hand, the frequency of the electromagnetic spectrum is usually expressed as nu (ν). Their relationship is therefore expressed as:
a.) Radio frequency is the rate of oscillation of waves between the ranges of 3 kHz to 300 GHz. Very low ...Download file to see next pagesRead More