We know the beam of light oscillates in electric field and magnetic field, both perpendicular to both the wave of propagation and each other. What does, however, a non-polarised beam of light look like?
Is there always only one electric wave in a specific point of propagation? Is every consecutive wave positioned randomly? (With its magnetic counterpart perpendicular to itself). Or are there more waves overlapping, travelling in one wave of propagation? Are these overlaping waves always of the same wave-lenght?
Is this picture accurate? With single electric wave (and its magnetic counterpart), oscillating randomly so that every consecutive wave is positioned differently (but still perpendicular to the wave of propagation)?
Or is it rather this one, with more waves overlapping and travelling together?