Image text transcribed for accessibility: This problem pertains to Young's two-slit interference experiment, in which the distance between d = 1 mm, the slit-to-screen distances is D = 1 m, and the wavelength is lambda = 500nm. The problem is to take account of difference due to the finite width of the slits. The irradiance of the fringes depends on both the interference of light from two slits and the diffraction pattern of a single slit. Write down an expression for the irradiance on the observation screen, taking both interference and diffraction into account No derivation is required Find the spacing between adjacent interference fringes on the screen. Find the width of the central maximum of the diffraction pattern, assuming that the slit width is = 0.1mm Sketch the resulting two-slit diffraction pattern. How many maxima of the Young interference pattern will fall under the central diffraction maximum if the slit width is reduced to = 0.01mm?