a) Calculate Brewster's angle for light incident from diamond into air if the glass has an index of 2.409.
b) Unpolarized light is incident on a series of two Polaroid sheets. The intensity of the light emerging from the second sheet is 27.7% of the intensity of the light incident on the first sheet. Discover the angle among the transmission axes of the two sheets.
c) At what distance from a single slit of width 0.155 mm must a screen be placed so that the width of the Fraunhofer central diffraction maximum is 15.5 mm (100 times the slit width), using light of wavelength 476 nm?