Hey im new to this forum, ive browsed around a few threads on here and found them to be quite insightful. I have a question for the physics gurus of this forum. To my understanding, light waves consists of an electric and magnetic field perpendicular to each other. If one constant were to change, would it then change the other constant? So if a beam of light were directed toward a magnetic field, is it possible to change the wave length of the beam?