Double Slit (Fraunhofer Diffraction)

Name : Double Slit (Fraunhofer Diffraction)

Double Slit diffraction is a phenomenon in wave optics that occurs when light passes through a narrow aperture or a slit and produces a pattern of interference and diffraction on a screen placed some distance away. When the light waves encounter an obstacle with dimensions comparable to the wavelength of the light, they diffract and interfere with each other, creating distinct patterns. The double-slit experiment is a classic example of Fraunhofer diffraction. It involves shining a coherent light source (e.g., laser) through two closely spaced slits and observing the pattern formed on a screen placed behind the slits. The light from each slit acts as a coherent source of waves that interfere with each other, resulting in an interference pattern on the screen. 1.Bright and Dark Fringes : On the screen, you will observe alternating bright and dark fringes. The bright fringes correspond to constructive interference, where the waves from both slits reinforce each other, resulting in increased intensity. The dark fringes occur due to destructive interference, where the waves from the two slits cancel each other out, leading to reduced or zero intensity. 2.Central Maximum: The central fringe (usually the brightest) occurs directly in line with the center of the two slits and corresponds to the maximum intensity in the pattern. Mounted: Glass plates and framed in a 45 x 60mm mount.

Country of Origin : India