A point source of light of power 3 2 milli watts emit energy

Last updated: 6/4/2023

A point source of light of power 3 2 milli watts emit energy 5eV If the source is located at a distance of 0 8m from the centre of metallic sphere of work function 3 eV and radius 8mm Number of photoelectrons emitted in 1 sec if efficiency is 1 is x x 10 in significant number then find value of y 1eV 1 6 x 10 9 J