Suppose a beam of red light from an He-Ne laser (2 = 633 nm) strikes a screen containing two narrow slits separated by 0.205 mm. The fringe pattern is projected on a white screen located 1.20 m away. Find the distance in millimeters between adjacent bright areas near the center of the interference pattern that is produced. %3D mm

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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.