What is called diffraction of light?

Diffraction of light is called the deviation of light from rectilinear propagation, which is manifested when light bends around obstacles, as well as when light passes through small holes and narrow slits.

Remember: The process of learning a person lasts a lifetime. The value of the same knowledge for different people may be different, it is determined by their individual characteristics and needs. Therefore, knowledge is always needed at any age and position.