Young's Slits (LT-2073)

To measure wave length of light by observing fringes produced by interference of two light beams from a common source, passing through two slits. Comprises a photographically reproduced double slit 10 mm x 1 mm. Separation, protected by glass plates in 50 x 50 mm mount. Mounted in a frame with a hinged joint and < micrometer screw to give fine adjustment.