Write down the electromagnetic wave equation and its general solution with clear meaning of terms used.
Deduce the ratio of maximum to minimum intensities in fringe system when the ratio of intensities of two waves producing interference is 16:1.
Derive an expression for the intensity distribution due to Fraunhofer diffraction at a single slit and show that relative intensities of successive maxima are nearly 1:4/9 : 4/25 : 4/49.
