Light Interference

Statement of Purpose
To measure the width of a hair using the two-slit interference principle.

Procedure

Set up the following.

The distance from the source to the screen was separated by one meter stick.

 

The average distance between two maximas were measured by a caliper. 

The control measurement of the hair was measured by a micrometer.

Data

Conclusion
According to CAQTI Cosmetics, Inc. the diameter of a typical black hair is between 56-181 micrometers which our experiment affirms.