Spectrometers: Single-slit diffraction is used in spectrometers to separate and analyze different wavelengths of light or other electromagnetic waves.This limit, known as the diffraction limit, determines the smallest details that can be distinguished by the instrument. Resolution limit of optical instruments: The diffraction of light passing through the aperture of optical instruments, such as telescopes, microscopes, and cameras, sets a limit to the resolution of the instrument.Single-slit diffraction has several applications and consequences in science and technology: The central bright maximum is much wider and more intense than the other bright fringes, and the pattern becomes more spread out as the slit width decreases or the wavelength of the light increases. m is an integer representing the order of the dark fringe (m = 1 for the first dark fringe, m = 2 for the second, and so on).θ is the angle between the central maximum and the dark fringe.The positions of the dark fringes in the diffraction pattern can be determined using the following formula: The intensity of the bright fringes decreases as they move further away from the central maximum. The pattern consists of a central bright maximum, flanked by alternating bright and dark fringes. When light passes through a single slit, the light waves emerging from the slit interfere with each other, creating a diffraction pattern on a screen placed some distance away from the slit. This spreading of light waves is due to the wave nature of light and can be explained by Huygens’ principle, which states that each point on a wavefront can be considered as a secondary source of spherical wavelets. Single-slit diffraction is a phenomenon that occurs when light waves pass through a narrow slit and spread out, deviating from their original direction.
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