In a photoelectric effect set up a point source of light of

Last updated: 6/11/2023

In a photoelectric effect set up a point source of light of power 3 2 x10 W emits monoenergetic photons of energy 5 0 eV The source is located at a distance of 0 8 m from the centre of a stationar metallic sphere of work function 3 0 eV and of radius 8 x10 m The efficiency of photo electrons emission is one for every 106 incident photons Assume sphere is isolated and initially neutral and that photo electrons are instantly swept away after emission then A No of electrons emitted per second is 106 BY Time after which electron emission stops is 111 11 sec No of electrons emitted per second is 10 D Time after which electron emission stops is 11 11 sec