![]() ![]() So, what interference is? Interference is the combination of two or more electromagnetic waveforms that form a resultant wave in which the displacement is either reinforced or canceled. When a train passes through the tunnel, the headlight of the engine spreads around and we see darkness all around, do you know why this happens? This happens because of diffraction.ĭiffraction is the spreading of light in the dark areas when it passes through a narrow lane or an area and this is accompanied by interference between the waveforms produced. The concept of interference is used when it comes to retrieving images from devices like telescopes and measuring the intensity of lights. Some practical applications of this concept can also be mentioned here. This concept is particularly used to test the surface quality. The concept of interference is widely used in different kinds of optical testing. ![]() This particular instrument can produce diffraction patterns with the help of X-ray diffraction and it is used to compare different kinds of crystals in order to determine and find out the different molecular structures of different types of crystals. Researchers have invented a particular kind of instrument that is named a diffractometer that is based on the concept of diffraction. ![]() There are simple crystals that diffract X-rays due to the atomic positions as in the case of simple crystals, the planes of atoms are equally spaced. There are crystals available in our nature and the molecular construction of the crystals can vary as well. The law of diffraction is quite helpful in manufacturing and designing modern technological appliances or instruments that can help researchers to determine the characteristics of a particular material. ![]()
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