Introduction The PASCO OS-8523 Slit Accessory is used with the PASCO OS-8525 Laser Diode on the optics bench in the PASCO OS-8515 Basic Optics System.This set of two disks has many different types of slits for diffraction and interference experiments.The special comparison patterns have two different slits spaced close enough together so they can both be illuminated by a single laser beam at the same time.This allows the student to compare the two different patterns side-by-side so they can see their similarities and differences. OS-8523 Slit Accessory specifications: The contents of the Single Slit Disk are (See Figure 1) -4 single slits (slit widths 0.02,0.04,0.08,0.16 mm) -1 variable slit (slit width varies from 0.02 to 0.20 mm) SINGLE SLIT SET 1 square patternl hexagonal pattern I random opaque dot pattern (dot diameter=0.06 mm) 1 random hole pattern(hole diameter =0.06 mm) 1 opaque line of width 0.08 mm I slit/line comparison,line and slit have similar width Figure 1:Single Slit Disk (0.04mm) 2 circular apertures(diameters 0.2 mm and 0.4 mm) NOTE:Due to limitations of the photographic process used to produce the slit film,the line and slit may not be exactly the same width. The contents of the Multiple Slit Disk are:(See Figure 2) -4 double slits (slit width/separation in mm:0.04/0.25, 0.04/0.50,0.08/0.25,0.08/0.50) E 0S-8523 1 variable double slit (slit separation varies from MULTIPLE SLIT SET 0.125 to 0.75 mm with constant slit width 0.04 mm) -4 comparisons:single/double slit with same slit width (0.04 mm) double/double slit with same slit width (0.04 mm), different separation(0.25 mm/0.50 mm) Figure 2:Multiple Slit Disk double/double slit with different slit widths(0.04,0.08 mm),same separation(0.25 mm) double/triple slit with same slit width(0.04 mm),same separation (0.125 mm) set of 4 multiple slits(2,3,4,5 slits)with same slit width(0.04 mm),same separation (0.125 mm)1 Introduction The PASCO OS-8523 Slit Accessory is used with the PASCO OS-8525 Laser Diode on the optics bench in the PASCO OS-8515 Basic Optics System. This set of two disks has many different types of slits for diffraction and interference experiments. The special comparison patterns have two different slits spaced close enough together so they can both be illuminated by a single laser beam at the same time. This allows the student to compare the two different patterns side-by-side so they can see their similarities and differences. OS-8523 Slit Accessory specifications: The contents of the Single Slit Disk are (See Figure l) - 4 single slits (slit widths 0.02, 0.04, 0.08, 0.16 mm) - 1 variable slit (slit width varies from 0.02 to 0.20 mm) - 1 square pattern1 hexagonal pattern - 1 random opaque dot pattern (dot diameter = 0.06 mm) - 1 random hole pattern (hole diameter = 0.06 mm) - 1 opaque line of width 0.08 mm - 1 slit/line comparison, line and slit have similar width (0.04 mm) - 2 circular apertures (diameters 0.2 mm and 0.4 mm) NOTE: Due to limitations of the photographic process used to produce the slit film, the line and slit may not be exactly the same width. The contents of the Multiple Slit Disk are: (See Figure 2) - 4 double slits (slit width/separation in mm:0.04/0.25, 0.04/0.50, 0.08/0.25, 0.08/0.50) - 1 variable double slit (slit separation varies from 0.125 to 0.75 mm with constant slit width 0.04 mm) - 4 comparisons: single/double slit with same slit width (0.04 mm) - double/double slit with same slit width (0.04 mm), different separation (0.25 mm/0.50 mm) - double/double slit with different slit widths (0.04, 0.08 mm), same separation (0.25 mm) - double/triple slit with same slit width (0.04 mm), same separation (0.125 mm) - set of 4 multiple slits (2, 3, 4, 5 slits) with same slit width (0.04 mm), same separation (0.125 mm)