Bubbles and Light Interference

A bubble in front of a CENCO lamp produces a colorful array

Concept Overview:

1. Interference of inner and outer walls of bubble

Lecturer Procedure

Step(s) to Follow	Expected Result
1. Turn on lamp. 2. Blow a single bubble	A colorful interference pattern will result on white board.

Step(s) to Follow

Expected Result

1. Turn on lamp.

2. Blow a single bubble

A colorful interference pattern will result on white board.

Special Note: In order to achieve a single bubble, do not use too much soap (this will create lots of tiny bubbles). It may be best to practice this before class.