A 36-year-old operator was assigned to carry out the process of inspecting very small products on the inspection table. Inspection difficulty level is quite high. The inspection process is carried out indoors with lighting from a lamp that has an angle of 300 to the table surface. The color of the paint around the inspection room is medium gray. The inspection process needs to be carried out carefully so that speed is not needed in this process. a. Calculate how much illumination is needed to do the job? b. If the lamp used has an intensity of 100,000 lumens and is 8 feet from the work surface, is the illumination sufficient? c. If the lighting is insufficient, recommend what changes should be made and prove it by calculation.