I have been studying interference of light waves for a while now and I have a doubt.
I have never seen any sources (books, internet , teachers) ever take into consideration about the "actual" physical angle between Electric fields of interfering waves (or equivalently that between the Magnetic fields of interfering waves) other than the phase difference.
- So do we take into account this angle, in general?
- In case they do ignore this angle, what are the corresponding assumptions?
P.S. Any source dealing with the examples on the same would be highly appreciated.