the bright and dark bands you see in a photograph of a double slit interference pattern represent a. the respective positions of destructive and constructive interference of light from the two sources. b. the respective positions of constructive and destructive interference of light from the two sources. c. the respective positions of the crests and the troughs of the light wave. d. an interference pattern that is not present unless it is produced by the camera lens. e. the respective positions of bright and dark particles of light. g