Coherent light of frequency 700 Terahertz passes through two thin slits and creates an interference pattern on a screen 100 [cm] away. How far apart are the slits if the third bright fringe occurs at ±2.05 [cm

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Diffraction of light

In physics, the term diffraction is defined as the bending of light around the corners of the obstacle. As a light ray passes by an aperture, it bends around the edges or through slits, it spreads out through a narrow opening. The diffracted light will produce fringes of bright and dark or colored bands which are labeled as a diffraction pattern.