Monochromatic light produces Fraunhofer diffraction at a single slit.
(a) Derive the mathematical condition for the angular positions of diffraction minima for a slit of width a illuminated by light of wavelength λ.
(b) Light of wavelength 600nm is incident normally on a slit of width 0.30mm. Calculate the angular positions of the first and second diffraction minima.
(c) If the screen is kept 2.0m away from the slit, determine the linear distance on the screen between the first and the second diffraction minima on the same side of the central maximum.