![]() ![]() It is caused by the interaction of waves. Differences between Interference and Diffraction Interferenceĭefinition: Interference is the phenomenon that occurs when two or more waves meet and combine to form a resultant wave.ĭefinition: Diffraction is the bending of waves around obstacles or through small openings. The distance between the diffraction fringes on a screen behind the opening can be measured, and the size of the opening can be calculated from the diffraction formula. For example, the diffraction pattern produced by a small opening can be used to measure the size of the opening. See also Difference between Clay Soil and Sandy Soilĭiffraction patterns can be used to measure the size of objects and the wavelength of waves. If the opening or obstacle is comparable in size to the wavelength of the wave, diffraction will be significant. If the opening or obstacle is much larger than the wavelength of the wave, there will be little or no diffraction. The diffraction pattern depends on the size of the opening or obstacle relative to the wavelength of the wave. When a wave passes through a small opening, it can spread out and create a diffraction pattern. When a wave encounters an obstacle, it can bend around the obstacle and create a diffraction pattern on the other side. Diffractionĭiffraction is a phenomenon that occurs when waves encounter an obstacle or pass through a small opening. By measuring the distance between the fringes on the screen, the wavelength of light can be calculated. The distance between the slits and the distance between the slits and the screen can be adjusted to produce different interference patterns. ![]() For example, the double-slit experiment can be used to measure the wavelength of light. Interference patterns can be used to measure the properties of light and other waves. If the waves are out of phase, meaning that their crests and troughs are misaligned, they will cancel out destructively. If the waves are in phase, meaning that their crests and troughs are aligned, they will add up constructively. The conditions for constructive and destructive interference depend on the phase difference between the waves. See also Difference between Latitude and Altitude ![]()
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