Hair Diffraction Lab

This simple, easy-to-print mount allows you to use an inexpensive laser pointer to measure the thickness of a human hair using a diffraction pattern similar to the classic double-slit experiment. When a laser beam is directed at a hair, the hair acts like an obstacle that splits the light into two coherent sources separated by the hair’s thickness. The light diffracts around the edges of the hair and interferes constructively and destructively, creating a clear pattern of bright and dark fringes on a screen or wall. You can calculate the thickness of the hair with surprising accuracy by measuring:• The distance from the hair to the screen• The spacing between bright fringes in the diffraction pattern• The wavelength of the laser (typically printed on the laser’s warning label) Simple, effective, and perfect for turning a low-cost laser into a powerful teaching tool!Key Design Features✔ Hands-Free Laser MountThe mount holds the laser securely and depresses the power button, turning a ch