School of Physics Lecture Demonstration Manual

Wc-1 Moire Patterns

Published: Tuesday 14 March 2006 - Updated: Wednesday 30 March 2011

Aim

To demonstrate interferance using Moire patterns.

Apparatus

Diagrams

Click on pictures to enlarge.

Moire Patterns Diagram

Description

The Moire' patterns used in the demonstration consist of a series of regularly spaced concentric circles, each circle representing a wavefront emanating form a source. Placing two similar Moire' patterns above each other on the overhead projector produces a visual representation of interference.

Safety notes

Electrical safety 

Maintenance 

top of page