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1) A lens forms a 1:1 image of a pattern of opaque vertical lines. The lines are 3 microns wide and are separated by transparent gaps of 9 microns. They are illuminated by a beam of light with a wavelength of 1 micron which is pointed towards the center of the lens. The lens diameter is just barely large enough to let the + and - first order beams go through. The incident light beam is redirected so that it is pointed towards the right hand edge of the lens. a) Where does the +1 order go? b) Where does the -1 order go? c) What is the Numerical Aperture of the lens? d) What is the width of the opaque lines in the image