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The transmission and absorption of the light
Many materials transmit light. These include precious glass and stones. Light is also transmitted by water and air: all these types of objects mentioned above are considered transparent materials. However, not all materials are transparent. There are also translucent materials, which also convey the light, but only partially, such as oil and ice.
The last is called the opaque material, which do not convey any light, since they absorb or reflect all the light that illuminates them. Some examples of this would be bricks or cement. When a light is transmitted through some transparent material, what is called the double refraction may happen. For example, if a glass is observed in the window, the initial refraction occurs when the light passes through the air and then to the glass or glass.
After this, it is refracted again when it passes again through the air. If after all this, the light does not deviate from its trajectory, the transmission is considered a regular. This, if disseminated in any direction, as in the translucent or ice crystals, it is called a diffuse transmission. If an address prevails, it is called a mixed transmission. This happens exclusively in organic crystals or cracked surfaces. If the light enters an object, it absorbs all the light or partially.
For example, if we see a black material, this, by its color it retains the light that is transmitted. Also, if we imagine some red pants, we would see that it absorbs green and blue. So, this absorbed light becomes heat. This is why during hot times like summer, it is recommended not to dress in dark colors since they absorb almost all the light, turning it into heat. Therefore, we are more heat if we use this type of clothing, compared to clear or white clothes, since they reflect the light and have an absence of color.
The absorption of electromagnetic radiation is an important process in physics. This is the process where such radiation is captured by matter. When the absorption is produced within the visible light range (the waves that can be seen with the human eye), it is called optical absorption. When this radiation is absorbed, it can be generated, as in the case of fluorescence. If not, it can be transformed into another type of energy, such as heat or electricity.
In essence, all objects or materials can absorb any degree or level. It is precisely the process of absorption, transmission and reflection that gives color to matter.