A point source causes photoelectric effect from a small metal plate. The curves may represent the saturation photocurrent as a function of the distance between the source and the metal? A point source causes photoelectric effect from a small metal plate. The curves may represent the saturation photocurrent as a function of the distance between the source and the metal? June 17, 2021 Category: Cengage NEET by C.P Singh , Chapter 11 - Photoelectric Effect , Part 2 , Facebook Messenger WhatsApp Share this:TwitterFacebook Related