Lab - Light waves: diffraction

Excerpts from the syllabus:
11th grade: Observation: Characteristics and properties of waves
12th grade STL: SPCL Waves Module

Introduction:
The phenomenon of diffraction can be observed in physical domains involving waves: mechanical (water, sound...), electromagnetic (radio waves, light...).
Studying diffraction with light waves allows for easy visualization of the phenomena.
However, the methods used with light can be applied to other examples.