As I was attempting to explain, but you don't seem to be interested in understanding, the processes which drive the Sun emit one photon at a time. Throughout its bulk there are many such processes. Each process emits one photon. The frequency of that photon depends on the details of the particular process which leads to that one photon. Since there are a huge number of such processes taking place it appears to a casual viewer that the production of photons is continuous, and that the sun emits the photons in a continuous spread of frequencies. However, careful investigation shows that this is a naive idea. The realization that the photons come one at a time at discrete frequencies has been arrived at through careful observation and experiment over a long period of time. The thing about it is that this is the only explanation that explains all of the observations.
The thing about science is that unless an explanation (theory) takes care of all of the observations then it is not correct. Over several hundreds of years the observation of the way light works can only be accounted for by the above description. As I said of course the actual way it works is much more complex. That is true because the whole thing has to hang together. If just one of the assumptions is wrong the whole thing falls apart. So far no scientist has been able to find anything wrong with the theories that lead to this description. Whenever somebody says that it is wrong they have not studied the facts closely enough to detect the problems with their ideas.
Bill Gill
