In a vacuum, the frequency makes no difference. Through materials it is more complicated.amaresh92 said:greetings,
why does the low frequency radiation or wave can not travel for longer distance?
advanced thanks.
but why is it so?mathman said:In a vacuum, the frequency makes no difference. Through materials it is more complicated.
This is not true in general. What exactly do you have in mind (regarding this question)?amaresh92 said:greetings,
why does the low frequency radiation or wave can not travel for longer distance?
advanced thanks.
The behavior of EM radiation depends on its wavelength. When EM radiation interacts with single atoms and molecules, its behavior also depends on the amount of energy per quantum (photon) it carries.
Electromagnetic waves in the ELF frequency range (3–30 Hz) (see also SLF) can travel through the oceans and reach submarines anywhere.
The main reason that low frequency radiation or waves cannot travel as far as high frequency radiation or waves is due to their longer wavelength. Low frequency radiation or waves have longer wavelengths, which means that they have a lower energy and are more easily absorbed or scattered by objects in their path. This absorption and scattering reduces the distance that the radiation or waves can travel.
The atmosphere plays a significant role in the travel of low frequency radiation or waves. The Earth's atmosphere is made up of different layers, and each layer has varying properties that can affect the propagation of radiation or waves. For example, the ionosphere in the upper atmosphere can reflect and refract low frequency waves, causing them to bounce around and not travel in a straight line.
Low frequency radiation or waves can travel through some objects, but they are more easily absorbed or scattered by solid materials. For example, radio waves with low frequencies can travel through walls and buildings, but they may lose some of their strength and clarity in the process. This is why higher frequency waves, like X-rays, are used for medical imaging as they can travel through the body more easily.
The power, or energy, of a radiation or wave can also affect its travel distance. Low frequency waves have lower energies, meaning they have less power to travel long distances. This is why higher frequency waves, like gamma rays, can travel much farther than low frequency waves before losing their energy.
Low frequency radiation or waves are often used for long distance communication, such as radio and television broadcasting. While they may not travel as far as high frequency waves, they can still cover long distances and are less affected by obstacles like buildings and mountains. However, they may not be as effective for communication in areas with dense populations or in urban environments with high levels of interference.