Diffraction by a Pair of Slits

The diffraction patterns of red and green light passing through a pair of slits are shown.

The diffraction patterns of red and green light passing through two 0.04 mm slits with 0.125 mm center-to-center spacing (pattern D on the diffraction plate) are shown.

The diffraction patterns of red and green light passing through two 0.04 mm slits with 0.250 mm center-to-center spacing (pattern E on the diffraction plate) are shown.

The diffraction patterns of red and green light passing through two 0.08 mm slits with 0.250 mm center-to-center spacing (pattern F on the diffraction plate) are shown.