4.6: Circular Apertures and Resolution Light diffracts as it moves through space, bending around obstacles, interfering constructively and destructively.Constructive interference occurs when \(d \space sin \space \theta = m \lambda\) form = 0, ± 1, ☒., where d is the distance between the slits, θ is the angle relative to the incident direction, and m is the order of the interference. 4.5: Diffraction Gratings A diffraction grating consists of a large number of evenly spaced parallel slits that produce an interference pattern similar to but sharper than that of a double slit.Missing orders occur when an interference maximum and a diffraction minimum are located together. Relative intensities of interference fringes within a diffraction pattern can be determined. 4.4: Double-Slit Diffraction With real slits with finite widths, the effects of interference and diffraction operate simultaneously to form a complicated intensity pattern.
\), D is the slit width, λλ is the wavelength, and θθ is the angle from the central peak.
