6D10.10 • Interference From Two Sources: Double Slits and Lasers

Location: Floor Demo

Photo of University of Texas at Austin's Demonstration

Instructions / Notes:

• Turn on the laser. The pattern appears on the wall.
• The slit widths and spacings are printed on the slide and can be viewed using a flashlight.
• To select different slits, move the slide stage sideways by cranking counter clockwise on the adjusting wheel.
• Please, turn off laser when not in use.

Last updated on June 8, 2026