Diffraction of lens by using He Ne Laser Experiment - Alkindy college of medicine كلية طب الكندي смотреть онлайн
You can find complete description of the experiment in this site:
https://www.muhadharaty.com/lecture/13043/Diffraction-of-lens-by-using-He-Ne-Laser-Experiment/%D8%B9%D9%85%D9%84%D9%8A
Objectives:
Study the diffraction of light from a double slit, a grating, a two dimensional array of holes
Equipment:
He-Ne laser, optical bench, component carrier, double slit, grating, square and hexagonal hole array, ruler