UIUC Physics Lecture Demo: Diffraction and Interference Slits

UIUC Physics
Lecture Demonstration
Database

Demo # 162

Diffraction and Interference Slits

ID # 162

Description:

As a light source passes through various amounts of slits, the interference and diffraction patterns change accordingly. A camera projects the patterns so we can see what they will be for different numbers of slits.

$Picture of Diffraction and Interference Slits$

Physics Concept:

Waves
Interference
Interference Patterns

The demonstration takes about 2 minutes to perform.