Light of wavelength lemda ph falls on a cathode plate inside a vacuum tube as shown in the figure. The work function of the cathode surface is phi and the anotde is a wire mesh of conducting material Light of wavelength lemda ph falls on a cathode plate inside a vacuum tube as shown in the figure. The work function of the cathode surface is phi and the anotde is a wire mesh of conducting material October 15, 2020 Category: Uncategorised (JEE Advanced Physics by BM Sharma + GMP Solutions) , Facebook Messenger WhatsApp Share this:TwitterFacebook Related