Variable Width Single Slit DIffraction

Variable Slit Apparatus

Concept Overview:

1. Visual demonstration of pattern produced by single slit diffraction

2. Variation of pattern dependent on width of slit

Lecturer Procedure

Step(s) to Follow	Expected Result
1. Place slit/slits in beam near laser. 2. Turn on laser. 3. Adjust height and/or angle of apparatus to create image on opposite wall	Clear pattern will be visible (see below)

Step(s) to Follow

Expected Result

1. Place slit/slits in beam near laser.

2. Turn on laser.

3. Adjust height and/or angle of apparatus to create image on opposite wall

Clear pattern will be visible

(see below)

$Single-slit diffraction pattern$