What is Laplace's equation? Check whether a potential of the form V=A+B/r satisfies it or not, where A and B are constants.
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.
Explain the formation of interference fringes using Fresnel biprism when a monochromatic source of light is used. Derive an expression for the fringe width and explain how the wavelength of light is determined using this method.
