Recent content by phil44

Hmm, the edit button seems to have disappeared, so sorry for the double post. Having thought about it a bit more, what I've said might not make a whole lot of sense. The light source essentially would have random phases at each point (I think, I don't see any reason why they would be in...

Homework Statement A light source consists of two long thin parallel wires, separated by a distance, W. A current is passed through the wires so that they emit light thermally. A filter is placed in front of the wires to only allow a narrow spectral range, centred at λ to propagate to a...