The Department of Physics at the College of Education for Pure Sciences organized an in-person training course on (Knowing how the intensity transmitted by the analyst changes with the change in the angle made by the plane using the Malus law experiment in polarization) delivered by the teacher, Dr. (Safaa Muhammad Reda), and the teacher (Hind Khudair Abbas). , Assistant Lecturer (Azhar Nazim Rahim). The training course aimed to achieve Malus’ law and calculate the intensity of light. The course also included learning how the intensity transmitted by the analyzer changes with the change in the angle made by the plane, using the Malus law experiment in polarization, and how to block unwanted wavelengths, which enables us to manufacture polarized lenses and glasses. Learn about the dual nature of light, the work of optical filters, the types of light polarization, and which is the best. Researchers have called for attention to such topics in order to develop the skills of polytheists to measure the intensity of light from any source by applying Malus’ law. And the polarization experiment, which gives a very wide possibility and flexibility in determining and measuring the intensity of light. And expanding the knowledge of researchers about how to know the change in intensity transmitted by the analyst with the change in the angle made by the plane using the Malus law experiment in polarization. To view the pictures