A set of compatible items which will enable diffraction to be investigated with slits, gratings, pinhole spots and other obstacles
The set comprises:1 Set of six lenses: focal lengths ‐100, ‐50, +50, +100, +200 and +1000mm.3 Lens holders.1 Slide holder for 50mm square slides.1 Pinhole slide, 50mm square, with holes of 0.2, 0.1 and 0.05mm.1 Slide with single and double slits
Set of six slides with 1, 2, 3, 4, 5, and 6 slits respectively.1 Set of three diffraction grating slides of 150 and 300 lines/mm.1 Air cell for refractive index of gases
Path length 75mm approx.2 Microscope slides: 76 x 25mm.1 Glass scale: 200 x 25 x 6mm, scale 0 to 150 mm x 1mm.1 Support stand for glass scale.1 Slide, 50mm square with circular obstacles for Fresnel diffraction.6 Bead headed mapping pins and needle for Fresnel diffraction.1 Hologram (ready prepared).1 Copy of Manual of School Laser DemonstrationsLasers can be purchased separately:B8A46139 ‐ Philip Harris Semi‐Conductor Laser
