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One of the primary purposes of serrated grating is to enhance the dispersion of light. The serrated edges create a greater effective surface area for light to interact with, which can lead to improved spectral resolution in diffraction applications. This property makes serrated gratings particularly valuable in spectrometers, where precise analysis of light spectra is essential. With improved wavelength separation, researchers can obtain clearer and more accurate readings, thereby enabling insightful analyses in chemical and physical studies.