The threshold wavelength for photoelectric emission from a material is 5200A˚. Photoelectrons will be emitted when this material is illuminated with monochromatic radiation from a lamp The threshold wavelength for photoelectric emission from a material is 5200A˚. Photoelectrons will be emitted when this material is illuminated with monochromatic radiation from a lamp June 17, 2021 Category: Cengage NEET by C.P Singh , Chapter 11 - Photoelectric Effect , Part 2 , Facebook Messenger WhatsApp Share this:TwitterFacebook Related