The central bright fringe within a single slit diffraction pattern from the light of wavelength 513 nm is 2.2 cm wide on a screen which is 1.05 m from the slit.
(i) Determine how wide is the slit (in mm)?
(ii) Determine how wide are the first two bright fringes on either side of the central bright fringe in cm? (State the width of a bright fringe as the linear distance from minimum to minimum.)