Comportament de la llum

Light is something we know from the day of our birth. Without light there is no life, but light has qualities that are sometimes unknown to us. Here we present these qualities: the operation of light rays studied in geometric optics. We find reflection and refraction in mirrors and lenses. Laser light helps us in experiments. The wave character of light can be observed experimentally with interference and diffraction. It is also very interesting to enter the world of colours: trichromy based on the way the human eye sees the colours and its technological applications. Polarization is another phenomenon that has applications in current technology. And fluorescence, light that comes from light, is a source of wonder for all people.